Casual vertical iPhone photo, afternoon in an empty modern school classroom with warm sunlight. The same young woman as in the reference image (about 30, dark-blonde messy bun, thin black-framed glasses, light blouse) sits at the teacher's desk and photographs a neat stack of student test papers with her smartphone held above them, smiling with relief. Natural phone-camera look, everything in focus, slight digital noise, imperfect framing. Photorealistic. No readable text, no letters, no watermark, no logo.
