Prompt: a visually striking and mysterious underwater biome that seamlessly blends darkness with bioluminescence in the world of Subnautica. Envision a deep-sea environment shrouded in darkness, with only the faint glow of bioluminescent organisms lighting up the surroundings. Design intricate and radiant flora that emit soft, mesmerizing light, creating an ethereal and captivating atmosphere. Integrate unique luminescent creatures that move gracefully through the shadows, their bioluminescent features creating a mesmerizing dance of light in the deep. Picture the ocean floor adorned with phosphorescent plants and rock formations, casting an enchanting glow on the seabed. Use a subdued yet rich color palette, combining deep blues and purples with vibrant bioluminescent accents, to convey both the beauty and the eeriness of this dark, bioluminescent underwater realm in Subnautica.