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 appearance into a fitness trainer. The identity must remain 100% recognizable; only the clothing, lighting, and environment should change.

TRANSFORMATION DESCRIPTION:
Transform the subject into a professional and athletic fitness trainer. The person should be wearing modern, high-quality activewear suitable for a gym session (e.g., moisture-wicking t-shirt, tank top, or athletic hoodie with leggings or shorts). The skin should have a healthy, subtle sheen suggesting a light workout. The expression should be confident, energetic, and motivating. The pose should be dynamic but natural, perhaps pointing at the camera or holding a water bottle.

STYLE AND AESTHETIC PARAMETERS:
- Art style: Photorealistic, cinematic fitness photography, similar to high-end sportswear advertisements.
- Lighting conditions: Studio-quality lighting with soft key light to highlight facial features, combined with rim lighting to separate the subject from the background. Slight volumetric lighting to add depth.
- Color palette: Vibrant and energetic colors (electric blues, oranges, or clean whites) contrasted with the subject's natural skin tones. High contrast and saturation.
- Background treatment: A clean, modern gym environment with blurred background elements (dumbbells, treadmills) to keep focus on the subject. Alternatively, a solid color studio backdrop (white or grey) with professional lighting setup.

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed, ultra-sharp image quality.
- Sharp focus on face and eyes, maintaining perfect facial likeness.
- Professional quality, 8k, masterpiece, trending on ArtStation.
- Aspect ratio: 3:4 (vertical portrait orientation) for social media and poster use.

NEGATIVE PROMPT GUIDANCE:
Avoid: distorted features, unrealistic proportions, blurry face, loss of likeness, unnatural skin texture, extra limbs, missing fingers, low resolution, pixelated, watermark, text, signature, bad anatomy, deformed body, oversized muscles, cartoonish style.

USER CUSTOMIZATION:
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FINAL INSTRUCTIONS:
Ensure the clothing fits the subject's body type realistically. The activewear should look like it is being worn by the person in the photo, not pasted on. The facial expression should match the energetic vibe of a fitness trainer.