Ultra realistic vertical 9:16 photo, inside the hollow of the gigantic ancient oak from the reference. A rounded oval room about 5 meters wide, curved rough dark wood walls rising into a dome-shaped ceiling, bare earth floor with a few thick roots, a small round opening of daylight at the far end. Camera at the entrance at eye level, looking straight into the room, perfectly centered one-point perspective. The builder from the reference (green cap, beige overalls, brown leather tool belt, short beard) stands in the middle of the room holding a flashlight and a tape measure.
