The image is an underwater photograph of a large school of fish swimming in an aquarium. The water is a deep blue color and the fish are of various sizes and colors, including white, black, and gray. The fish are densely packed together, creating a large number of them. The largest group of fish is in the center of the image, with the largest group at the bottom and the smallest at the top. They are all facing the same direction and appear to be moving in different directions. The image is taken from a low angle, looking up at the fish and the surrounding water. The overall effect is one of vastness and abundance.