(full nudity,bondage), schoolgirls, knees tied and suspended

(full nudity,bondage), schoolgirls, knees tied and suspended, open legs, detailed eyes and face, delicate skin and hair, school uniforms, submissive expressions, dimly lit room, rope and chains, BDSM elements, realistic rendering, professional quality, vivid colors, bokeh　The body is suspended in the air. Being trampled on the belly