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 tennis player portrait. Maintain the original facial identity and expression with high accuracy.

TRANSFORMATION DESCRIPTION: Transform the person into a professional tennis player in action. Dress them in appropriate tennis attire: white or colored tennis shirt, athletic shorts or skirt, tennis visor or cap, and athletic shoes. The pose should show the person holding a tennis racket naturally, either in a ready stance, mid-swing, or celebrating a point. Add subtle athletic elements like wristbands or a tennis ball. The overall look should be dynamic and sporty while keeping the face completely recognizable.

STYLE AND AESTHETIC PARAMETERS:
- Style: Photorealistic sports photography with professional quality
- Lighting: Natural outdoor court lighting or bright studio lighting with slight dramatic rim lighting for athletic definition
- Color palette: Vibrant sports colors - whites, bright athletic tones, natural skin tones preserved
- Mood: Energetic, confident, athletic, professional
- Background: Tennis court environment (green or blue surface, net in soft focus) OR blurred sports facility background to keep focus on the person
- Texture: Realistic fabric textures for athletic wear, natural skin texture preserved, detailed hair

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed
- Sharp focus on face maintained throughout transformation
- Professional sports photography quality
- Natural skin texture and facial details preserved
- Aspect ratio: 3:4 or 4:5 (portrait orientation recommended)
- Cinematic depth of field with subject in sharp focus

NEGATIVE PROMPT GUIDANCE: Avoid: distorted facial features, unrealistic proportions, blurry face, loss of likeness, unnatural clothing attachment, poor fabric texture, distorted hands or fingers, unnatural racket positioning, mismatched lighting on face vs body, unnatural body proportions, low resolution, watermark text, logo placement issues

USER CUSTOMIZATION: {additional_context}

ADDITIONAL TIPS: For best results, ensure the original photo has clear facial visibility and decent lighting. You can specify preferred tennis attire color, pose type (serving, volleying, ready position), or background preference in the additional context field.