Generate Ocean Research Vessel Portraits

Photorealistic portrait of the subject from the waist up, standing at the stern deck of a research vessel — scientific equipment racks and specimen collection containers behind, the open ocean stretching to the horizon under a bright midday sky. The subject wears a faded navy field shirt with chest pockets, a high-visibility life vest worn open over the top and a waterproof ID lanyard at the chest, looking directly into the camera. Bright, hard midday sun from directly above creates a clean overhead light — strong shadows beneath the collar and vest straps, the ocean glittering sharply out of focus behind. Shot on Phase One IQ4 150MP with Zeiss Otus 85mm f/1.4, f/2.8 aperture, 1/1000s shutter speed, ISO 100. Detailed field shirt cotton weave with sun-fading at the shoulders, life vest buckles and mesh panel texture, specimen containers and equipment racking softly resolved behind. Skin with natural subsurface warmth under the hard overhead sun, visible pores, realistic catchlights. Avoid any environmental effect on the subject's face, avoid plastic or airbrushed skin, avoid fog or haze, avoid text and watermarks. 2:3 aspect ratio.