Underwater Forest Stream Photography

Shot using a high-definition underwater camera, this prompt aims to capture authentic natural underwater landscapes in an environment that is {argument name="environment description" default="Clear, shallow stream beside a tropical rainforest"} Vertical composition, 3:4 aspect ratio, mid-to-long distance. The camera is slightly below the water's surface, showcasing the shimmering water above, realistically depicting water refraction and natural reflection. Sunlight streams obliquely into the water from the upper right corner, creating soft beams and underwater light spots. The dark reflections and shadows of large tree branches occupy part of the upper right corner of the composition. At the center of the image is clear, tranquil stream water with slightly suspended particles, and {argument name="number of fish" default="5-8"} Small, native freshwater fish swim naturally, primarily gray-silver and light brown, varying in size and spacing, not forming orderly schools. Dark green, yellowish-green, and brownish-green aquatic plants grow on the stream bed, swaying gently with the current, naturally distributed, unlike in an artificial aquarium. The bottom consists of grayish-brown fine sand, gravel, pebbles, and a few naturally shaped stones, with slight traces of algae and water erosion. Multiple springs at the bottom show fine sand slowly seeping from the holes, forming slight sand clouds and localized water disturbances, rather than white smoke, steam, or large bubbles. This is a real shot of a natural landscape, with a high-end nature documentary feel, approaching the style of National Geographic ecological photography. It features clear water, natural lighting, restrained colors, realistic underwater optical effects, slight graininess, natural depth of field, and high-definition detail. There are no people, no buildings, no artificial elements, no text, no borders, and no logos. Avoid CG-like effects, aquarium appearance, underwater corals, exaggerated schools of fish, oversaturated greens, dreamy lighting effects, or plastic aquatic plants.