The image is a close-up of a green sea anemone. The sea anemon is a type of coral that is native to the ocean and is known for its spiky, elongated tentacles. The tentacles are a bright, vibrant green color and are spread out in a fan-like pattern. The background is dark, making the green color stand out even more. The image appears to be taken underwater, as there are small rocks visible in the background. The overall mood of the image is peaceful and serene.