Classroom blackboard with Pythagoras theorem

Frame setup: generate an image of a classroom blackboard alongside the Pythagoras theorem being solved step by step. Tip: bump up the surface texture detail if you want a tactile, gallery-grade feel.

Tight medium-shot composition with clear focal point and balanced negative space.

Natural window light from camera-left, gentle bounce on the shadow side.

Clean studio backdrop with subtle gradient transitioning to the floor.

Hyper-realistic finish leaning toward magazine cover aesthetic.

Photographic-grade depth of field with subtle bokeh in the background.