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 overall presentation into a professional business portrait. Maintain the authentic likeness and identity of the individual.

TRANSFORMATION DESCRIPTION:
Transform the photo into a professional services portrait with a confident, approachable, and trustworthy expression. The subject should appear well-groomed, professionally dressed in business attire (suit jacket, blouse, or professional shirt), and positioned with good posture. The expression should be warm but authoritative - a slight natural smile that conveys competence and reliability. Adjust lighting to create a professional studio-quality look that flatters the subject's features while maintaining their natural appearance.

STYLE AND AESTHETIC PARAMETERS:
- Art style: Photorealistic professional corporate photography with clean, polished aesthetics
- Lighting conditions: Professional studio lighting - soft key light from front-left at 45 degrees, subtle fill light to reduce shadows, professional rim lighting to separate subject from background
- Color palette: Professional color grading with natural skin tones, slightly enhanced contrast for depth, clean whites and neutral tones
- Background treatment: Clean, neutral professional background - solid light gray, soft white gradient, or subtle blurred office environment. Background should be non-distracting and business-appropriate
- Wardrobe enhancement: Professional business attire that looks natural and well-fitted. Colors should be solid and professional (navy, gray, white, black)
- Grooming: Natural, polished appearance with flyaway hairs controlled, professional makeup if applicable (natural and subtle)

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed
- Sharp focus maintained on the face and eyes
- Professional portrait quality with excellent skin texture retention
- 85mm lens equivalent perspective (flattering headshot composition)
- f/2.8 aperture simulation for subtle background separation
- Professional color grading and exposure
- Crisp, clear details without over-processing
- Aspect ratio: 4:5 vertical portrait (ideal for website profiles) or 3:4

USER CUSTOMIZATION:
{additional_context}

NEGATIVE PROMPT GUIDANCE:
Avoid: distorted facial features, unrealistic proportions, blurry face, loss of likeness, harsh shadows, overexposed highlights, unprofessional clothing, casual or inappropriate attire, distracting background elements, unnatural skin smoothing, plastic-looking skin, off-center composition, tilted head, unnatural expressions, excessive makeup, visible digital artifacts, low resolution, pixelation, cropped composition, double exposure, text overlays, logos, watermarks, props, casual poses, crossed arms, hands near face, extreme angles