A lamia with an impossibly elegant upper body, pale flawless skin, long dark hair cascading over bare shoulders and full breasts, narrow waist transitioning into a long powerful serpentine lower body, scales shimmering iridescent green and gold in dim torchlight, coiled sensually on ancient stone floor, upper body reclined back supported by arms, head tilted exposing neck, heavy-lidded eyes with vertical pupils gazing up, lips slightly parted, scales glistening wet, intimate dungeon atmosphere, pencil sketch style, delicate shading, mythical erotic tension.