caption: The image shows a sea urchin on the bottom of a coral reef, surrounded by various sea plants. The urchins are a deep blue color, and the coral reef is a vibrant mix of colors, ranging from bright pinks and purples to deep blues and greens. The sea plants are a mix of shapes and sizes, with some of them reaching up towards the sky. The sun's rays are reflecting off the surface of the water, creating a beautiful sparkle.