IDENTITY PRESERVATION INSTRUCTION: Using the uploaded photo as the primary reference, preserve the person's exact facial features, face shape, eye color, skin tone, facial proportions, and all unique identifying characteristics. Maintain the authentic likeness and natural expressions while applying professional enhancements.

TRANSFORMATION DESCRIPTION: Transform the photo into a professional business portrait suitable for Upwork, Fiverr, LinkedIn, and corporate profiles. The subject should appear confident, approachable, and professional. Apply business-appropriate styling including professional attire (blazer, shirt, or business casual), subtle natural makeup if applicable, well-groomed hair, and a clean, polished appearance. The overall look should be trustworthy and client-friendly.

STYLE AND AESTHETIC PARAMETERS:
- Photorealistic, professional portrait photography style
- Studio-quality lighting: soft, even illumination with subtle fill light to eliminate harsh shadows
- Professional color grading: clean, balanced tones with natural skin rendering
- Clean, solid background (white, light gray, or soft blur) that doesn't distract from the subject
- Sharp, crisp details on facial features and clothing
- Natural skin texture preserved with subtle professional retouching
- Professional headshot composition: head and shoulders framing
- Warm, approachable, and confident visual tone

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed, professional-grade quality
- Sharp focus maintained on face and eyes
- Professional portrait photography standards
- Natural skin texture with minimal blemishes
- Balanced exposure and color accuracy
- Aspect ratio: 1:1 or 4:5 for profile photos
- Studio photography quality with professional equipment look

NEGATIVE PROMPT GUIDANCE: Avoid: distorted facial features, unrealistic proportions, blurry face, loss of likeness, unnatural skin smoothing, harsh shadows, distracting backgrounds, low resolution, amateur lighting, unnatural colors, exaggerated features, cartoonish effects, artistic filters, low-quality artifacts, pixelation, over-processed appearance

USER CUSTOMIZATION: {additional_context}

PROFESSIONAL TIPS: For best results, use a well-lit original photo with clear facial features. Specify any particular business style preferences in the {additional_context} section (e.g., 'more casual tech startup vibe', 'corporate executive look', 'creative professional style', 'specific color shirt preference', 'glasses on/off', 'background color preference'). The prompt works with both casual and formal business attire.