Celestial Ocean of an Alien World

An alien ocean under a massive ringed planet, where the sky is filled with swirling nebulae of blues and greens. The ocean is bioluminescent, with waves that glow in shades of turquoise and teal. In the distance, futuristic structures rise from the water, their sleek designs reflecting the celestial light. A small spacecraft hovers above the water, casting a shadow on the shimmering surface. The style is highly detailed and futuristic, capturing the essence of science fiction.