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 catalog portrait. Maintain all distinctive facial attributes, natural expressions, and recognizable identity markers.

TRANSFORMATION DESCRIPTION: Convert the photo into a professional service catalog portrait with clean, business-appropriate styling. The person should appear in a well-lit studio setting with professional attire suitable for service industry representation. Apply subtle professional grooming enhancements while keeping the appearance natural and authentic. The final image should look like a high-end commercial photograph for professional service catalogs, business directories, or corporate portfolios.

STYLE AND AESTHETIC PARAMETERS:
- Art style: Photorealistic professional photography with commercial quality
- Lighting conditions: Studio lighting with soft key light, subtle fill light, and professional three-point lighting setup that creates gentle shadows and highlights facial structure naturally
- Color palette: Professional, clean color grading with natural skin tones, slightly enhanced contrast for visual appeal, and crisp whites or neutral backgrounds
- Background treatment: Clean, solid professional background (light gray, white, or soft neutral tone) with subtle depth of field. Background should be non-distracting and business-appropriate
- Appearance details: Professional grooming with natural-looking hair styling, subtle makeup enhancement if applicable, and business-appropriate clothing (collared shirt, blouse, professional top, or blazer)
- Facial expression: Professional, approachable expression with natural smile or neutral confident look suitable for business contexts

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed
- Sharp focus on face with perfect facial clarity
- Professional quality commercial photography standards
- Aspect ratio: 4:5 vertical portrait orientation or 3:4 for catalog use
- Image clarity: Crisp details, professional-grade sharpness, no artifacts
- Skin texture: Natural skin texture preserved with professional retouching quality
- Color depth: Rich, accurate colors with professional color grading

NEGATIVE PROMPT GUIDANCE: Avoid: distorted features, unrealistic proportions, blurry face, loss of likeness, over-processed skin, artificial-looking enhancements, harsh shadows, overly dramatic lighting, distracting backgrounds, casual clothing, low resolution, pixelation, unnatural skin smoothing, excessive makeup, artistic filters, anime style, cartoon effects, surreal elements, fantasy styling, poor lighting, unprofessional appearance

USER CUSTOMIZATION: {additional_context}

Additional Tips:
- For best results, use a well-lit original photo with clear facial features
- Specify any particular professional field or industry context in {additional_context} for tailored styling
- Mention preferred background color or clothing style in customization if desired
- The prompt maintains natural appearance while elevating to professional catalog quality