Anime Mermaid in a Haunted House: Eerie Ocean Echoes

An anime-style mermaid with a shimmering teal tail and long aqua hair sits gracefully on a creaky staircase inside a haunted, dust-filled mansion. Moonlight pours through broken windows, casting pale blue light on cobwebs and old portraits. Ghostly wisps drift around her while seaweed-like vines cling to warped wood and coral-like growth lines the walls. The scene blends oceanic imagery with gothic horror: glowing orbs, fog, and tidal motifs. Cinematic three-quarter view, soft cel shading, high detail, painterly textures; color palette of midnight blue, purple, cyan, and emerald green; whimsical yet eerie mood.