The Crisp White Shirt

Create a 4:5 aspect ratio, high-contrast black-and-white studio portrait of a person with their head turned to look directly into the camera. Lower-chest-up portrait with a subtle profile view. The subject is wearing a crisp white button-up collar shirt. The lighting is dramatic and sharp, creating distinct highlights and shadows, set against a pure white high-key background. Professional photography, sharp focus. Use exactly the provided face, keeping the hair, facial details, and skin tone unchanged. No Passport-type photo. 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.