masterpiece, best quality, realistic, 8k, photorealistic,
scenery, indoors,
(location), **underwater**, **aquarium**, **glass tunnel**, transparent walls, ocean, sea,
(creatures), **fish**, **shark**, **whale**, coral reef, school of fish, marine life, ray,
(lighting), **caustics**, **light rays**, **tyndall effect**, blue water, natural light,
(structure), **perspective**, **depth of field**, vanishing point, floor,
(optional subject), 1boy, silhouette, looking up, small, standing
