1girl, ahoge, animal_ear_fluff, animal_ears, blue_one-piece_swimsuit, blue_sky, blush, breasts, cloud, collarbone, competition_swimsuit, covered_navel, cumulonimbus_cloud, hair_ribbon, horizon, large_breasts, long_hair, looking_at_viewer, mizunashi_kenichi, ocean, one-piece_swimsuit, open_mouth, original, outdoors, ribbon, sidelocks, sitting, sky, solo, spread_legs, stomach, swimsuit, water_drop, white_hair