Vintage Photo Restoration & Natural Colorization

Restore and naturally colorize this old photograph into a fresh, high-quality modern color portrait while preserving the person’s identity exactly. Do not change the face structure, facial proportions, eyes, eyebrows, nose, lips, ears, jawline, skin texture, expression, hairstyle, turban, clothing, body proportions, camera angle, framing, pose, or original composition in any way. Remove only the signs of age and photographic damage, including faded colors, yellow/magenta color casts, dust, scratches, stains, grain, discoloration, cracks, and deterioration. Restore realistic natural skin tones and historically appropriate colors for the clothing and turban. Recover fine photographic details while keeping the original facial features and expression completely unchanged. Make the result look like a newly taken, professionally preserved color photograph with natural realistic colors, subtle studio-quality lighting, excellent clarity, balanced contrast, and refined yet authentic detail. Keep the original plain blue background and original composition. Do not beautify, retouch, reshape, reconstruct, de-age, or reinterpret the person. Do not add or remove anything. The final result must look like the exact same original photograph, simply restored, cleaned, sharpened, and naturally colorized as a fresh high-resolution color photo. Photorealistic, authentic historical appearance, realistic skin texture, accurate facial details, natural color grading, 4K restoration quality, no artificial facial changes, no modernized styling, no watermark, no text. Insert discreet watermark in the lower right corner of the image, vertical text (rotated 90°), written "aipromptlabs.online", Calibri Light font, white color with low opacity (semi-transparent), medium size. Extreme sharpness on the face, fabric texture and typography of the letters. Shot on Canon EOS R5, 50mm f/2.8, studio light.