The girl in the classroom is writing on the blackboard, wearing tights, mature, 18 years old, photographed from behind.

(nsfw:1.5),shiny skin, smooth skin, out of frame, (bad fingers:1.2), (bad hands:1.2), (bad limbs:1.1), (bad proportions:1.2), (bad quality:1.1), (poorly drawn face:1.3), ugly face, (poorly drawn:1.2), asymmetrical body, (bad anatomy:1.3), (flesh merge:1.2), (large breasts:1.0), (fleshpile:1.2), tiling, (generic:1.1), glitchy, (gross proportions:1.2), (malformed:1.2), extra arms, extra fingers, extra hands, extra legs, extra limbs, extra body parts, extra breasts, mangled fingers, (masculine:1.3), (bad body structure:1.2), badly drawn hands, (badly drawn:1.2), (amateur art:1.2), missing arms, missing breasts, missing extremities, missing hands, missing limbs, missing lips, mutated hands, (mutation:1.2), poorly drawn hands, asian, abstract, (anime:1.2), (blurry:1.1), cloned face, (deformed:1.2), (disfigured:1.2), double torso, fat, long body, penis, skinny, testicles, , ugly, cropped, jpeg artifacts, signature, blurry.