Selkie in an Underground City

Photorealistic depiction of a selkie, a mythical seal-woman, in an expansive underground city carved from basalt and mineral veins. She stands knee-deep in a shallow canal among ancient arches, rusted pipes, and hanging brass lanterns. Bioluminescent algae and amber lights glow on damp stone, casting emerald reflections on the water. The selkie has wet, dark hair, piercing green eyes, and shimmering skin with subtle hints of blue-green scales along the arms. A sleek seal-skin cloak drapes over one shoulder, while her lower body is a glistening seal tail that coils behind her in the water. The city above and along the canal features carved statues, bridges, and cisterns, all reflected in the rippling surface. Atmosphere is cool, damp, and misty, with droplets in the air and distant dripping sounds. Cinematic, hyperreal detail, ultra-high-resolution 8K, emphasis on skin texture, water sheen, reflective surfaces, and atmospheric lighting.