Put a real person inside a handmade cardboard world

Start from my uploaded user photo. Retain the real subject's facial pixels, hairstyle, skin tone, age cues, proportions and pose. Replace only the background and unoccupied floor with a handmade cardboard version of [PLACE]: visible corrugation, cut edges, taped joins and practical shadows. Where cardboard touches the subject, use accurate occlusion rather than repainting clothing or skin. Keep the original camera height and one coherent light direction. Deliver a single finished composite and a concise mask map describing what stayed photographic. No cartoon face, floating scenery, illegible labels or duplicate limbs. Compare the cardboard boundary with the original subject; use a protected source layer if exact facial detail is required.