CG thick painting style, panoramic composition, combining telephoto lens and aerial perspective to capture underwater fantasy scenes. Background light and rainbow light intertwine and flicker in the water, creating dynamic light effects. The underwater creatures and coral details are rich, with vivid and saturated colors, using unique bluish-green tones and light refraction effects of underwater photography. Thick brush strokes enhance the texture, while wide-angle lenses stretch the sense of space. The sparkle on the water surface and bubbles increase the sense of realism. The overall image is filled with artistic and fantastical colors, deep depth of field highlights the subject, and the contrast between cool tones and warm light is strong, creating a mysterious and stunning underwater world.