Siren Among Sunken Temple Ruins

Photorealistic depiction of a siren with iridescent blue-green scales and a graceful tail, half-human upper body, long wet hair, seated on a broken limestone column amid sunken temple ruins. The underwater scene is rich with coral, kelp, and crumbling arches; turquoise water, dappled sunlight filtering through, volumetric light beams, and rising bubbles. The siren gazes at the viewer with a faint, otherworldly glow in her eyes, mood mysterious and haunting. Ultra-detailed textures: wet stone, coral textures, skin and scales, light refractions. Cinematic underwater lighting, 8k realism.