"Photorealistic 1:1 square travel photo of a solo hiker (30s, gender-ambiguous, short curly hair) wearing a bright yellow rain shell and small daypack, standing on a black volcanic sand ridge above a steaming geothermal valley in Iceland, looking toward distant snow-capped mountains. Blue hour light with soft mist, visible fumarole plumes, and a winding trail leading into the frame for strong depth; captured on a full-frame camera with a 35mm lens, f/5.6, crisp detail and natural color grading. National Geographic-style composition with ample negative sky space for text, no logos, no readable signage."