1girl, back, bare_shoulders, closed_mouth, coral, coral_reef, earrings, flip-flops, full_body, green_eyes, green_hair, honkai_(series), honkai_impact_3rd, horns, jellyfish, jewelry, long_hair, looking_at_viewer, looking_back, mobius_(daughter_of_corals)_(honkai_impact), mobius_(honkai_impact), official_alternate_costume, sandals, single_earring, smile, solo, swimsuit, toes, tongue, tongue_out, underwater, water