underwater scene, full body portrait, fully nude seductive woman, (35 years old), (delicate flat chest with subtle muscle definition), (long flowing hair in deep emerald green blending with the water), hybrid siren-mermaid anatomy, (sleek iridescent fishtail transitioning seamlessly from human legs, scales shimmering in turquoise and silver), hauntingly ethereal expression, high-fashion editorial lighting with dramatic chiaroscuro, (bioluminescent plankton drifting like scattered stars), coral reef backdrop in muted teal and violet hues, shafts of sunlight piercing the water at sharp angles, shot from a low angle perspective to emphasize elongated form, (weight, otherworldly grace), (weight, fishtail's hypnotic movement), water distortion effects creating a dreamlike haze