IDENTITY PRESERVATION INSTRUCTION:
Using the uploaded photo as reference, preserve the person's exact facial features, face shape, eye color, skin tone, and unique characteristics while transforming them into an elderly version of themselves to appear as a grandparent in a family portrait.

TRANSFORMATION DESCRIPTION:
Transform the uploaded photo to show the person as an elderly grandparent (either grandmother or grandfather - user to specify). Apply realistic aging effects including natural wrinkles, age spots, gray or white hair, and subtle facial sagging while maintaining the underlying bone structure and core facial identity. The person should be sitting or standing next to a younger version (the original photo subject), creating a multi-generational family portrait scene. The elderly version should look warm, dignified, and naturally aged, not artificially altered. Clothing should be appropriate for an elderly person (classic, modest styles).

STYLE AND AESTHETIC PARAMETERS:
- Art style: Photorealistic, cinematic family portrait quality
- Lighting: Soft, warm natural window light or gentle studio lighting that flatters both ages
- Color palette: Warm, nostalgic tones - creams, soft browns, muted golds, creating a cozy, sentimental atmosphere
- Facial details: Realistic skin texture with fine lines, wrinkles, and age spots that follow natural facial contours
- Hair: Gray or white hair with realistic texture and natural variations
- Background: Cozy home setting - living room with soft furnishings, warm wood tones, or a garden with soft bokeh
- Expression: Warm, loving interaction between generations - gentle smiles, kind eyes
- Clothing: Classic, timeless styles for the elderly version (cardigan, blouse, or shirt with collar)

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed
- Sharp focus on both faces, maintaining clarity on the elderly transformation
- Professional quality portrait photography
- Aspect ratio: 1:1 (square) or 4:3 (classic portrait)
- Natural skin texture preserved for both ages
- Seamless blending of generations

NEGATIVE PROMPT GUIDANCE:
Avoid: Distorted facial features, unrealistic proportions, blurry face, loss of likeness, cartoonish aging effects, exaggerated wrinkles, unnatural skin textures, mismatched lighting between subjects, poor blending of generations, artificial-looking hair, inconsistent age progression

USER CUSTOMIZATION:
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ADDITIONAL TIPS:
For best results, specify in your customization whether you want to appear as grandmother or grandfather, and mention any specific family traits you'd like to emphasize (e.g., "my grandmother's eye shape", "my grandfather's strong jawline"). You can also specify preferred clothing styles or background settings.