Cinematic Underwater Male Portrait with Sun Caustics Prompt

A young man floating underwater with eyes closed, peaceful expression, long dark wavy hair flowing in deep blue clear water with air bubbles and sunlight refractions. Wearing a white button-up shirt with light ripples on it. Cinematic lighting, photorealistic, 8k resolution. Keep original face 100% same, do not change facial features. 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.