An ethereal, floating island with a fantastical ecosystem.
A detailed 3D render: An ethereal island floats in a serene sky, featuring a vibrant ecosystem. The foreground showcases a lush forest with houses and a watery base, while the background consists of majestic mountains. The island's interior reveals a rocky landscape with visible tree roots, adding depth. The natural paradise is reflected in the green and blue hues, depicting a surreal yet harmonious scene.