Classroom in academy. Anime style. 8k, high quality, 
Classroom in academy. Anime style. 8k, high quality, --ar 4:2
Classroom in academy. Anime style. 8k
high quality,
a painting of a school cafeteria
an illustration of a classroom with desks and a blackboard
an image of a classroom with lots of desks and windows
an illustration of a classroom with desks and clocks