Create a vertical 4:5 photorealistic 3D social-art mockup with natural cinematic daylight, realistic skin texture, soft shadows, and moderate depth of field. Show one American adult man, with dark curly textured hair and a neatly trimmed beard, wearing a gray patterned hoodie, dark olive-green jacket, and dark trousers, as he appears to reach out toward the viewer from a social post card. Beyond the display, show a pine-lined mountain road, a retro blue camper van, bright daylight with soft clouds, and a few distant birds. Frame the scene with a minimal white fictional X-style post card containing a generic icon, one caption, and an abstract formatted-code preview. Include the exact caption 'GPT image 2.5 on ChatGPT.' once and one simple X mark, but no creator name, account handle, profile portrait, verified badge, engagement counts, or other attributed claims. Make the interface clearly read as a fictional visual mockup, not an authentic screenshot. use eye-level perspective, sharp focus on the face, and moderate background blur. No additional people, logos beyond the single X mark, watermark, signature, or unsupported resolution/render-engine claims.