PROMPT:
A mystical, underwater realm of Abyssal Arcadia, where iridescent marine life thrives amidst glowing, bioluminescent flora. Vibrant colors dominate the scene, with turquoise, emerald, amethyst, and sapphire hues illuminating the darkness. A majestic, ethereal palace constructed from coral and shells rises from the seafloor, its intricate architecture radiant with a soft, pulsing light. Schools of rainbow-tailed fish dart through the palace's grand hall, while delicate, crystalline formations suspend from the high ceiling like a thousand glittering chandeliers. Every detail is rendered in photorealistic clarity, as if the viewer has stumbled upon a hidden, shimmering world.