Best quality, masterpiece, extremely detailed, handsome muscular young man

best quality, masterpiece, extremely detailed, handsome muscular young man, skinny build, messy curtain bangs, thick-rimmed glasses, fitted college uniform, bulging, standing in front of classroom, empty blackboard in the background, tilts head adorably, very innocent smile, wearing a collar on the neck, arms tied behind his back with chains, a ball gag strapped around his mouth blushing, hands touching his body, gay, homoerotic, romantic atmosphere, ambient lighting, extremely dramatic shadows, perfection, no watermark, no logo, no signature

worst quality, low quality, bad anatomy, bad hands, bad feet, bad body, missing fingers, extra digits, fewer digits, watermark, logo, signature