Ultra-high-resolution 4K enhancement of a personal portrait photo, increasing sharpness and clarity …

"Ultra-high-resolution 4K enhancement of a personal portrait photo, increasing sharpness and clarity while strictly preserving the subject’s original facial and body proportions. Maintain the true identity, natural facial structure, expressions, and body shape without any alteration. Enhance fine details realistically with natural skin texture (no smoothing or beautification). Photorealistic fine-art photography style, balanced lighting, natural colors, crisp focus, highly detailed skin texture, and clean clarity — no artificial effects, no aesthetic modifications, purely realistic detail enhancement."