Low-Key Dark Studio With Rim Light.

Make the person in the attached photo the subject, with their face and facial structure unchanged exactly as in the original. Create a low-key studio portrait against a deep black backdrop, the person wearing a black turtleneck so the face and hands stand out. Use one narrow strip light from behind-left to draw a thin line of light along the cheek, jaw and shoulder, plus a faint fill from the front to keep the eyes visible. 85mm lens at f/4, half-body, one hand lightly touching the jaw, slight head tilt. Rich blacks that keep a little shadow detail, crisp edge highlights, sharp eyes, fine skin texture. Vertical 4:5, fine-art studio quality. 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.