Mermaid's architecture, underwater palace, grand entrance, shimmering iridescent scales, delicate seaweed-like decorations, intricate shell carvings, sparkling crystal chandeliers, lavish ocean-inspired furnishings, majestic throne room, stained glass windows, soft blue-green lighting, coral reef surroundings, schools of fish swimming by, ocean currents flowing gently, misty atmosphere, dreamy ambiance, fantasy composition, vibrant colors.