Realistic Man in Chair

a photo of a hansome 40 year old man deep in thought sitting in a chair, the photo is in grayscale and realistic, --ar 4:5 --v 6 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.