(masterpiece, best quality, photorealistic, highres), 18-year-old mixed-race girl, incredibly sexy, flawless caramel-brown skin, petite and athletic body, narrow waist, round hips, perky large breasts with dark erect nipples, long curly black hair tied back, soft full lips swollen from rough use, terrified and humiliated expression, huge brown eyes wide open, completely naked, suspended upside down by thick coarse ropes tied tightly around slim ankles and wrists, body trembling, arms pulled behind back and secured, deep rope marks on thighs and abdomen, open ring gag in mouth, drool pouring over her face and breasts, anus gaping from aggressive dilation, vaginal opening red and leaking semen, traces of double fisting, belly slightly bulging, slick with sweat, fresh bruises and finger marks on inner thighs and ass, electrical clamps on nipples with scorched skin around, visible tears, industrial torture dungeon, sharp metal table below, spotlight above casting harsh shadows, grungy cold concrete walls, cinematic high contrast, ultra-detailed textures