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 course cover portrait. The person's identity must remain completely recognizable and authentic.

TRANSFORMATION DESCRIPTION:
Transform the uploaded photo into a high-quality, professional online course cover image. The subject should appear as an expert, instructor, or coach. The transformation should maintain a natural, approachable yet authoritative look. The person should be positioned centrally, looking confidently at the camera or slightly off-center with a thoughtful expression. The overall composition should be clean, modern, and suitable for digital marketing use.

STYLE AND AESTHETIC PARAMETERS:
- Art style: Photorealistic, professional portrait photography, high-end commercial look
- Lighting conditions: Soft studio lighting or natural window light with a subtle rim light to separate subject from background. The lighting should be flattering, professional, and create a sense of trust and expertise.
- Color palette and mood: Clean, modern color palette. Slightly desaturated or muted tones for a sophisticated look. The mood should be confident, approachable, and professional. Skin tones must be natural and accurate.
- Background treatment: The background should be clean and non-distracting. Options include: a subtle blurred office or bookshelf background, a solid neutral color (light gray, white, or soft blue), or a very subtle gradient. The background should not compete with the subject.

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed, ultra-sharp image quality
- Sharp focus on face and eyes
- Professional quality, suitable for commercial use
- Aspect ratio: 16:9 (standard for online course thumbnails) or 4:3
- Detailed skin texture with natural pores and no excessive smoothing
- Professional color grading and contrast

NEGATIVE PROMPT GUIDANCE:
Avoid: distorted facial features, unrealistic proportions, blurry face, loss of likeness, artificial-looking skin, harsh shadows, cluttered background, distracting elements, low resolution, pixelation, unnatural eye color, over-processed look, cartoonish style, watermarks, text, logos, or any visible artifacts.

USER CUSTOMIZATION:
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FINAL INSTRUCTIONS:
Ensure the final image looks like a professional photo shoot specifically designed for an online course cover. The person should look like an expert in their field, ready to teach and engage students. The image should be clean, modern, and optimized for digital display.