Underwater scene, ocean floor, coral reef, schools of fish, colorful seaweed, shiny jellyfish, mermaid, long flowing hair, shimmering scales, seashell bra, pearls necklace, sparkling tail, relaxed posture, leaning against a giant clamshell, gentle ocean current, soft sunlight filtering through the water surface, vibrant marine life, detailed textures, 3/4 composition, warm and cozy ambient lighting.