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 the image into a professional portrait. Maintain the natural likeness and individual identity without altering core facial structure, birthmarks, or distinctive features.

TRANSFORMATION DESCRIPTION:
Transform the photo into a professional studio portrait with a clean white or neutral gray background. The subject should be positioned in a classic headshot composition, shoulders visible, facing the camera with a natural, confident expression. The background should be completely uniform and professionally lit, creating a sharp separation between subject and background. Lighting should be soft yet directional, emphasizing facial features without harsh shadows. The overall look should be corporate, polished, and suitable for business profiles, resumes, or professional networking platforms.

STYLE AND AESTHETIC PARAMETERS:
- Art style: Photorealistic, professional studio photography quality
- Lighting conditions: Soft studio lighting with gentle key light from 45-degree angle, minimal fill light to reduce shadows, professional rim lighting for separation
- Color palette: Natural skin tones, true-to-life colors, professional color grading with neutral white balance
- Background treatment: Either pure white (#FFFFFF) or professional neutral gray (#808080), completely uniform and seamless
- Facial enhancement: Subtle skin smoothing while preserving natural texture, slight eye brightening, natural teeth whitening if smiling
- Clothing: Keep original attire but enhance if needed for professional appearance
- Pose: Natural head and shoulder pose, direct eye contact with camera, confident but approachable expression

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed
- Sharp focus on face, especially eyes
- Professional quality, commercial photography standard
- Aspect ratio: 4:5 vertical portrait orientation (suitable for LinkedIn and professional use)
- Depth of field: Slight background blur to emphasize subject while keeping background clean
- No artifacts, natural skin texture preserved, professional color grading

NEGATIVE PROMPT GUIDANCE:
Avoid: distorted features, unrealistic proportions, blurry face, loss of likeness, harsh shadows, uneven lighting, busy or cluttered background, unnatural skin smoothing that looks plastic, overexposed or underexposed areas, color casts on skin, pixelation, low resolution, off-center composition, awkward cropping, unnatural expressions, stiff or forced poses

USER CUSTOMIZATION:
{additional_context}

USAGE TIPS:
- For best results, use a well-lit original photo with clear facial features
- Specify preferred background color (white or gray) in {additional_context}
- Mention if you prefer a specific expression (serious, smiling, neutral)
- Indicate if you need specific attire adjustments for industry standards
- Specify any retouching preferences (more natural vs. more polished)