diff --git a/README.md b/README.md
index e363e67..a56276b 100644
--- a/README.md
+++ b/README.md
@@ -76,21 +76,25 @@ Mit **Docker CLI**:
 # Image bauen
 docker build -t cat-sitting-planner .
 
+# Container starten
 # Container starten
 docker run -d \
   --name cat-sitting-planner \
   -p 3000:3000 \
   -v /pfad/zum/host/data:/app/data \
+  -v /pfad/zum/host/uploads:/app/public/uploads \
   --restart always \
   cat-sitting-planner
 ```
 
 ### 2. Datenpersistenz (Wichtig)
 Die Daten liegen in `/app/data/dev.db`.
-Mappe diesen Ordner unbedingt auf ein lokales Volume:
+Bilder werden in `/app/public/uploads` gespeichert.
+Mappe diese Ordner unbedingt auf lokale Volumes:
 ```yaml
 volumes:
   - /pfad/zum/host/data:/app/data
+  - /pfad/zum/host/uploads:/app/public/uploads
 ```
 
 ---
diff --git a/app/[lang]/dashboard/[planId]/_components/plan-dashboard.tsx b/app/[lang]/dashboard/[planId]/_components/plan-dashboard.tsx
index 8506eed..29f100e 100644
--- a/app/[lang]/dashboard/[planId]/_components/plan-dashboard.tsx
+++ b/app/[lang]/dashboard/[planId]/_components/plan-dashboard.tsx
@@ -16,6 +16,10 @@ import {
     DialogTitle,
     DialogTrigger,
 } from "@/components/ui/dialog"
+import { Textarea } from "@/components/ui/textarea"
+import { uploadImage } from "@/app/actions/upload-image"
+import { Camera, Upload } from "lucide-react"
+
 import { Input } from "@/components/ui/input"
 import { Label } from "@/components/ui/label"
 import { RadioGroup, RadioGroupItem } from "@/components/ui/radio-group"
@@ -61,12 +65,56 @@ export function PlanDashboard({ plan, dict, settingsDict, lang }: PlanDashboardP
     const [cancelReason, setCancelReason] = useState("")
     const [isSubmitting, setIsSubmitting] = useState(false)
 
-    const handleComplete = async (bookingId: number) => {
+    // Completion Dialog State
+    const [isCompleteDialogOpen, setIsCompleteDialogOpen] = useState(false)
+    const [bookingToComplete, setBookingToComplete] = useState<number | null>(null)
+    const [completionMessage, setCompletionMessage] = useState("")
+    const [completionImage, setCompletionImage] = useState<File | null>(null)
+    const [imagePreview, setImagePreview] = useState<string | null>(null)
+
+    const handleCompleteClick = (bookingId: number) => {
+        setBookingToComplete(bookingId)
+        setCompletionMessage("")
+        setCompletionImage(null)
+        setImagePreview(null)
+        setIsCompleteDialogOpen(true)
+    }
+
+    const handleImageChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+        const file = e.target.files?.[0]
+        if (file) {
+            setCompletionImage(file)
+            const reader = new FileReader()
+            reader.onloadend = () => {
+                setImagePreview(reader.result as string)
+            }
+            reader.readAsDataURL(file)
+        }
+    }
+
+    const handleConfirmComplete = async () => {
+        if (!bookingToComplete) return
+
+        setIsSubmitting(true)
         try {
-            await completeBooking(bookingId, plan.id, lang)
-            toast.success(dict.bookedSuccess) // reuse for now or add new toast
+            let imageUrl: string | undefined = undefined
+
+            if (completionImage) {
+                const formData = new FormData()
+                formData.append("file", completionImage)
+                formData.append("planId", plan.id)
+                imageUrl = await uploadImage(formData)
+            }
+
+            await completeBooking(bookingToComplete, plan.id, lang, completionMessage, imageUrl)
+            toast.success(dict.jobDone)
+            setIsCompleteDialogOpen(false)
+            setBookingToComplete(null)
         } catch (error) {
+            console.error(error)
             toast.error(dict.bookError)
+        } finally {
+            setIsSubmitting(false)
         }
     }
 
@@ -238,7 +286,7 @@ export function PlanDashboard({ plan, dict, settingsDict, lang }: PlanDashboardP
                                                         variant="outline"
                                                         size="sm"
                                                         className="w-full flex gap-2 items-center border-green-200 hover:bg-green-100/50 text-green-700 dark:border-green-800 dark:hover:bg-green-900/40 font-semibold"
-                                                        onClick={() => handleComplete(booking.id)}
+                                                        onClick={() => handleCompleteClick(booking.id)}
                                                     >
                                                         <Check className="w-4 h-4" />
                                                         {dict.markDone}
@@ -352,6 +400,72 @@ export function PlanDashboard({ plan, dict, settingsDict, lang }: PlanDashboardP
                     </DialogFooter>
                 </DialogContent>
             </Dialog>
+
+            {/* Completion Dialog */}
+            <Dialog open={isCompleteDialogOpen} onOpenChange={setIsCompleteDialogOpen}>
+                <DialogContent>
+                    <DialogHeader>
+                        <DialogTitle>{dict.completeTitle}</DialogTitle>
+                        <DialogDescription>
+                            {dict.completeDesc}
+                        </DialogDescription>
+                    </DialogHeader>
+
+                    <div className="grid gap-4 py-4">
+                        <div className="grid gap-2">
+                            <Label htmlFor="message">{dict.completeMessage}</Label>
+                            <Textarea
+                                id="message"
+                                value={completionMessage}
+                                onChange={(e) => setCompletionMessage(e.target.value)}
+                                placeholder={dict.completeMessagePlaceholder}
+                            />
+                        </div>
+
+                        <div className="grid gap-2">
+                            <Label htmlFor="photo">{dict.completePhoto}</Label>
+                            <div className="flex items-center gap-4">
+                                <Button variant="outline" size="icon" className="w-12 h-12" onClick={() => document.getElementById('photo-upload')?.click()}>
+                                    <Camera className="w-6 h-6" />
+                                </Button>
+                                <Input
+                                    id="photo-upload"
+                                    type="file"
+                                    accept="image/*"
+                                    capture="environment"
+                                    className="hidden"
+                                    onChange={handleImageChange}
+                                />
+                                {imagePreview && (
+                                    <div className="relative w-20 h-20 rounded-md overflow-hidden border">
+                                        <img src={imagePreview} alt="Preview" className="w-full h-full object-cover" />
+                                        <Button
+                                            variant="ghost"
+                                            size="icon"
+                                            className="absolute top-0 right-0 h-5 w-5 bg-background/50 hover:bg-background"
+                                            onClick={() => {
+                                                setCompletionImage(null)
+                                                setImagePreview(null)
+                                            }}
+                                        >
+                                            <X className="w-3 h-3" />
+                                        </Button>
+                                    </div>
+                                )}
+                            </div>
+                        </div>
+                    </div>
+
+                    <DialogFooter>
+                        <Button variant="outline" onClick={() => setIsCompleteDialogOpen(false)} disabled={isSubmitting}>
+                            {dict.cancel}
+                        </Button>
+                        <Button onClick={handleConfirmComplete} disabled={isSubmitting}>
+                            {isSubmitting ? dict.completing : dict.completeSubmit}
+                        </Button>
+                    </DialogFooter>
+                </DialogContent>
+            </Dialog>
         </div>
     )
 }
diff --git a/app/actions/booking.ts b/app/actions/booking.ts
index 15a4d44..6f3022b 100644
--- a/app/actions/booking.ts
+++ b/app/actions/booking.ts
@@ -83,7 +83,7 @@ export async function deleteBooking(bookingId: number, planId: string, lang: str
     revalidatePath(`/${lang}/dashboard/${planId}`)
 }
 
-export async function completeBooking(bookingId: number, planId: string, lang: string = "en") {
+export async function completeBooking(bookingId: number, planId: string, lang: string = "en", message?: string, imageUrl?: string) {
     const dict = await getDictionary(lang as any)
 
     const booking = await prisma.booking.findUnique({
@@ -95,7 +95,11 @@ export async function completeBooking(bookingId: number, planId: string, lang: s
 
     await prisma.booking.update({
         where: { id: bookingId },
-        data: { completedAt: new Date() }
+        data: {
+            completedAt: new Date(),
+            completionMessage: message,
+            completionImage: imageUrl
+        }
     })
 
     if (booking.plan.notifyAll) {
@@ -104,12 +108,19 @@ export async function completeBooking(bookingId: number, planId: string, lang: s
         const planUrl = `${protocol}://${host}/${lang}/dashboard/${planId}`
 
         const dateStr = booking.date.toLocaleDateString(lang)
-        const message = dict.notifications.completed
+        let notificationMessage = dict.notifications.completed
             .replace("{name}", booking.sitterName || "Someone")
             .replace("{date}", dateStr)
             .replace("{url}", planUrl)
 
-        await sendPlanNotification(planId, message, booking.plan.webhookUrl)
+        if (message) {
+            notificationMessage += `\n"${message}"`
+        }
+
+        // We need to pass the full URL for the image
+        const fullImageUrl = imageUrl ? `${protocol}://${host}${imageUrl}` : undefined
+
+        await sendPlanNotification(planId, notificationMessage, booking.plan.webhookUrl, fullImageUrl)
     }
 
     revalidatePath(`/${lang}/dashboard/${planId}`)
diff --git a/app/actions/upload-image.ts b/app/actions/upload-image.ts
new file mode 100644
index 0000000..66df877
--- /dev/null
+++ b/app/actions/upload-image.ts
@@ -0,0 +1,50 @@
+"use server"
+
+import { writeFile, mkdir } from "fs/promises"
+import { join } from "path"
+import { v4 as uuidv4 } from "uuid"
+
+export async function uploadImage(data: FormData) {
+    const file: File | null = data.get("file") as unknown as File
+
+    if (!file) {
+        throw new Error("No file uploaded")
+    }
+
+    const bytes = await file.arrayBuffer()
+    const buffer = Buffer.from(bytes)
+
+    // Validate mime type (basic check)
+    if (!file.type.startsWith("image/")) {
+        throw new Error("Only images are allowed")
+    }
+
+    // Create uploads directory if it doesn't exist
+    // We organize by generic uploads folder for now, or per plan?
+    // Let's optimize for simplicity: /public/uploads/YYYY/MM
+
+    const now = new Date()
+    const year = now.getFullYear()
+    const month = String(now.getMonth() + 1).padStart(2, '0')
+    const params = data.get("planId") ? String(data.get("planId")) : "misc"
+
+    // Use /uploads/planId/ to keep it somewhat organized or cleanup-able
+    const relativeDir = join("uploads", params)
+    const uploadDir = join(process.cwd(), "public", relativeDir)
+
+    try {
+        await mkdir(uploadDir, { recursive: true })
+    } catch (e) {
+        // ignore if exists
+    }
+
+    // Generate filename
+    const ext = file.name.split('.').pop() || "jpg"
+    const filename = `${uuidv4()}.${ext}`
+    const filepath = join(uploadDir, filename)
+
+    await writeFile(filepath, buffer)
+
+    // Return the public URL
+    return `/${relativeDir}/${filename}`
+}
diff --git a/dictionaries/de.json b/dictionaries/de.json
index 6307b45..c7a10fa 100644
--- a/dictionaries/de.json
+++ b/dictionaries/de.json
@@ -62,7 +62,14 @@
         "cancelError": "Entfernen fehlgeschlagen",
         "noInstructions": "Noch keine spezifischen Instruktionen hinterlegt.",
         "markDone": "Job erledigt?",
-        "jobDone": "Job erledigt!"
+        "jobDone": "Job erledigt!",
+        "completeTitle": "Job abschließen",
+        "completeDesc": "Füge optional eine Nachricht oder ein Foto hinzu.",
+        "completeMessage": "Nachricht (optional)",
+        "completeMessagePlaceholder": "Alles super!",
+        "completePhoto": "Foto (optional)",
+        "completeSubmit": "Job als erledigt markieren",
+        "completing": "Speichere..."
     },
     "login": {
         "title": "Passwort eingeben",
diff --git a/dictionaries/en.json b/dictionaries/en.json
index 79c8999..c77990d 100644
--- a/dictionaries/en.json
+++ b/dictionaries/en.json
@@ -62,7 +62,14 @@
         "cancelError": "Cancellation failed",
         "noInstructions": "No specific instructions added yet.",
         "markDone": "Job done?",
-        "jobDone": "Job done!"
+        "jobDone": "Job done!",
+        "completeTitle": "Complete Job",
+        "completeDesc": "Add a message or photo (optional) and confirm.",
+        "completeMessage": "Message (optional)",
+        "completeMessagePlaceholder": "All good!",
+        "completePhoto": "Photo (optional)",
+        "completeSubmit": "Complete Job",
+        "completing": "Completing..."
     },
     "login": {
         "title": "Enter Password",
diff --git a/docker-compose.yml b/docker-compose.yml
index 4da9852..ad6d519 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -7,4 +7,5 @@ services:
       - DATABASE_URL=file:/app/data/dev.db
     volumes:
       - ./data:/app/data
+      - ./public/uploads:/app/public/uploads
     restart: always
diff --git a/lib/notifications.ts b/lib/notifications.ts
index 2cd6789..d01a439 100644
--- a/lib/notifications.ts
+++ b/lib/notifications.ts
@@ -1,18 +1,37 @@
-export async function sendNotification(webhookUrl: string | null, message: string) {
+export async function sendNotification(webhookUrl: string | null, message: string, imageUrl?: string) {
     if (!webhookUrl) return;
 
     try {
+        const payload: any = {
+            content: message,
+            text: message
+        }
+
+        // For Discord: use embed if image exists
+        if (imageUrl && webhookUrl.includes("discord")) {
+            payload.embeds = [{
+                image: {
+                    url: imageUrl
+                }
+            }]
+        }
+
+        // For generic webhooks, just append URL to text if not Discord, or leave as is?
+        // Let's create a simpler payload if image exists but not discord?
+        // Actually, if we just send JSON, most won't render it unless specific format.
+        // Let's just append the image URL to the message if it's not a Discord webhook, so it's clickable.
+        if (imageUrl && !webhookUrl.includes("discord")) {
+            payload.content += `\n${imageUrl}`;
+            payload.text += `\n${imageUrl}`;
+        }
+
         const response = await fetch(webhookUrl, {
             method: "POST",
             headers: {
                 "Content-Type": "application/json",
                 "User-Agent": "CatSittingPlanner/1.0"
             },
-            // Works for Discord (content) and generic Telegram Webhook bridges (text)
-            body: JSON.stringify({
-                content: message,
-                text: message
-            }),
+            body: JSON.stringify(payload),
         });
         if (!response.ok) {
             console.error(`[Notification] Webhook failed with status ${response.status}`);
@@ -25,12 +44,12 @@ export async function sendNotification(webhookUrl: string | null, message: strin
 import { sendPushNotification } from "./push";
 import prisma from "@/lib/prisma";
 
-export async function sendPlanNotification(planId: string, message: string, webhookUrl?: string | null) {
+export async function sendPlanNotification(planId: string, message: string, webhookUrl?: string | null, imageUrl?: string) {
     // Parallelize sending
     const promises: Promise<any>[] = [];
 
     if (webhookUrl) {
-        promises.push(sendNotification(webhookUrl, message));
+        promises.push(sendNotification(webhookUrl, message, imageUrl));
     }
 
     try {
@@ -40,13 +59,11 @@ export async function sendPlanNotification(planId: string, message: string, webh
 
         if (subscriptions.length > 0) {
             console.log(`[Push] Found ${subscriptions.length} subscriptions for plan ${planId}`);
-            const payload = {
+            const payload: any = {
                 title: "Cat Sitting Planner",
                 body: message,
-                url: `/`
-                // We could pass specific URL if needed, but for now root is okay or dashboard?
-                // The service worker opens the URL.
-                // Ideally, we want to open `/dashboard/[planId]`.
+                url: `/`,
+                image: imageUrl
             };
 
             // Refine URL in payload
diff --git a/package-lock.json b/package-lock.json
index eb80969..8f930a0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,6 +17,7 @@
         "@radix-ui/react-popover": "^1.1.15",
         "@radix-ui/react-radio-group": "^1.3.8",
         "@radix-ui/react-slot": "^1.2.4",
+        "@types/uuid": "^10.0.0",
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.1.1",
         "date-fns": "^4.1.0",
@@ -30,6 +31,7 @@
         "react-hook-form": "^7.71.0",
         "sonner": "^2.0.7",
         "tailwind-merge": "^3.4.0",
+        "uuid": "^13.0.0",
         "web-push": "^3.6.7",
         "zod": "^4.3.5"
       },
@@ -4332,6 +4334,12 @@
       "integrity": "sha512-ScaPdn1dQczgbl0QFTeTOmVHFULt394XJgOQNoyVhZ6r2vLnMLJfBPd53SB52T/3G36VI1/g2MZaX0cwDuXsfw==",
       "license": "MIT"
     },
+    "node_modules/@types/uuid": {
+      "version": "10.0.0",
+      "resolved": "https://registry.npmjs.org/@types/uuid/-/uuid-10.0.0.tgz",
+      "integrity": "sha512-7gqG38EyHgyP1S+7+xomFtL+ZNHcKv6DwNaCZmJmo1vgMugyF3TCnXVg4t1uk89mLNwnLtnY3TpOpCOyp1/xHQ==",
+      "license": "MIT"
+    },
     "node_modules/@types/web-push": {
       "version": "3.6.4",
       "resolved": "https://registry.npmjs.org/@types/web-push/-/web-push-3.6.4.tgz",
@@ -11003,6 +11011,19 @@
         }
       }
     },
+    "node_modules/uuid": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-13.0.0.tgz",
+      "integrity": "sha512-XQegIaBTVUjSHliKqcnFqYypAd4S+WCYt5NIeRs6w/UAry7z8Y9j5ZwRRL4kzq9U3sD6v+85er9FvkEaBpji2w==",
+      "funding": [
+        "https://github.com/sponsors/broofa",
+        "https://github.com/sponsors/ctavan"
+      ],
+      "license": "MIT",
+      "bin": {
+        "uuid": "dist-node/bin/uuid"
+      }
+    },
     "node_modules/watchpack": {
       "version": "2.5.0",
       "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-2.5.0.tgz",
diff --git a/package.json b/package.json
index 9040267..287a450 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,7 @@
     "@radix-ui/react-popover": "^1.1.15",
     "@radix-ui/react-radio-group": "^1.3.8",
     "@radix-ui/react-slot": "^1.2.4",
+    "@types/uuid": "^10.0.0",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "date-fns": "^4.1.0",
@@ -34,6 +35,7 @@
     "react-hook-form": "^7.71.0",
     "sonner": "^2.0.7",
     "tailwind-merge": "^3.4.0",
+    "uuid": "^13.0.0",
     "web-push": "^3.6.7",
     "zod": "^4.3.5"
   },
@@ -50,4 +52,4 @@
     "tw-animate-css": "^1.4.0",
     "typescript": "^5"
   }
-}
\ No newline at end of file
+}
diff --git a/prisma/migrations/20260113102925_add_completion_details/migration.sql b/prisma/migrations/20260113102925_add_completion_details/migration.sql
new file mode 100644
index 0000000..10e656e
--- /dev/null
+++ b/prisma/migrations/20260113102925_add_completion_details/migration.sql
@@ -0,0 +1,3 @@
+-- AlterTable
+ALTER TABLE "Booking" ADD COLUMN "completionImage" TEXT;
+ALTER TABLE "Booking" ADD COLUMN "completionMessage" TEXT;
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index e5d5e91..fead4f5 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -34,6 +34,9 @@ model Booking {
   completedAt DateTime?
   createdAt  DateTime @default(now())
   
+  completionMessage String?
+  completionImage   String?
+
   @@unique([planId, date, sitterName])
 }
 
diff --git a/public/uploads/cmkcggt3h0000m22q5b4eefey/4d34a526-456e-4f09-816d-211dc1d81b58.jpeg b/public/uploads/cmkcggt3h0000m22q5b4eefey/4d34a526-456e-4f09-816d-211dc1d81b58.jpeg
new file mode 100644
index 0000000..c1a12cd
Binary files /dev/null and b/public/uploads/cmkcggt3h0000m22q5b4eefey/4d34a526-456e-4f09-816d-211dc1d81b58.jpeg differ
diff --git a/public/uploads/cmkcgiynz0001m22q5jq74ma3/5f6138f9-3fee-4426-ad9d-e5d8a7ecd1b6.jpeg b/public/uploads/cmkcgiynz0001m22q5jq74ma3/5f6138f9-3fee-4426-ad9d-e5d8a7ecd1b6.jpeg
new file mode 100644
index 0000000..c1a12cd
Binary files /dev/null and b/public/uploads/cmkcgiynz0001m22q5jq74ma3/5f6138f9-3fee-4426-ad9d-e5d8a7ecd1b6.jpeg differ