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 changing only the hairstyle. Maintain the original facial structure, nose shape, lip shape, eyebrow thickness, facial hair if present, and all distinctive marks to ensure complete likeness retention.

TRANSFORMATION DESCRIPTION: Replace the current hairstyle with [describe desired hairstyle: e.g., 'a modern fade undercut with textured top', 'long layered hair reaching shoulders', 'classic side-parted pompadour', 'buzz cut with clean edges', 'curly afro with natural volume', 'slicked back undercut', 'messy textured crop with fringe', 'man bun with tapered sides']. The new hairstyle should be perfectly adapted to the person's head shape and facial structure, appearing completely natural and professionally styled. Hair texture should be appropriate to the style (sleek and smooth for pompadour, natural waves for medium length, defined texture for crops).

STYLE AND AESTHETIC PARAMETERS:
- Photorealistic, natural-looking hair integration that matches the original photo quality
- Professional studio lighting or natural lighting consistent with the source image
- Hair should have realistic volume, shine, and texture with individual strands visible
- Color should either match the original hair color or be specified in user customization
- The hairline should appear natural and seamlessly integrated with the forehead
- Consider the person's age and style when applying the new hairstyle
- Keep the background unchanged or minimally affected

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed
- Sharp focus maintained on face and hair
- Professional quality portrait standards
- Natural skin texture preserved throughout
- Realistic hair shadows and highlights on the face
- Aspect ratio: Match original photo dimensions
- No visible artifacts or AI generation errors

NEGATIVE PROMPT GUIDANCE: Avoid: distorted facial features, unrealistic hair attachment, skin tone mismatch, blurry face, loss of facial likeness, artificial-looking hair texture, hair that doesn't match head shape, floating hair elements, mismatched lighting between hair and face, unnatural hairline, overly perfect or synthetic appearance, pixelation around hair edges

USER CUSTOMIZATION: {additional_context}

ADDITIONAL TIPS: For best results, use a clear front-facing photo with good lighting. Specify your desired hairstyle in detail in the {additional_context} section (e.g., 'short fade with 3 inches on top, textured', 'medium length with curtain bangs', 'clean shave head'). You can also specify hair color changes if desired.