Generate Viking Longship Warrior Portraits

Photorealistic historical portrait of a subject in authentic Viking warrior dress — iron-riveted chainmail hauberk over a heavy wool tunic, a round painted shield strapped to one arm, an axe held loosely at the side, fur-lined cloak whipping in the North Sea wind. Standing at the prow of a longship mid-voyage, the carved dragon figurehead rising behind them, a dramatic overcast North Atlantic sky filling the upper frame, dark heaving swells visible on either side of the hull. Hard cool overcast light delivering even diffused illumination on the face with a faint warm rim from the grey horizon, the wind pulling the cloak dramatically to one side without affecting the face. Phase One IQ4 150MP, Zeiss Otus 85mm f/1.4, f/2.0, 1/200s, ISO 800. Full figure from head to mid-thigh, ample breathing room on all sides. Natural skin texture, visible pores, subsurface warmth through the ears, realistic iris detail, natural catchlight. Individual iron ring detail in the chainmail, wool fibre texture in the tunic, wood grain and carved detail on the dragon prow. Fine film grain throughout, slight chromatic aberration on the shield's painted edge. Isolated and resolute mood. Avoid plastic skin, avoid airbrushed smoothing, avoid extra hands, avoid warped anatomy, avoid cartoon styling, avoid CGI or rendered look, avoid fog or mist, avoid text or watermarks. 2:3 aspect ratio.