4girls, black_hair, black_one-piece_swimsuit, blue_sailor_collar, blue_sky, brown_eyes, brown_hair, closed_eyes, cloud, fish, fubuki_(kancolle), hair_ornament, horizon, i-400_(kancolle), i-401_(kancolle), innertube, kantai_collection, looking_at_viewer, low_ponytail, medium_hair, multiple_girls, ocean, one-piece_swimsuit, orange_sailor_collar, partially_underwater_shot, ponytail, sailor_collar, sailor_shirt, school_swimsuit, school_uniform, serafuku, shirayuki_(kancolle), shirt, short_hair, short_ponytail, short_sleeves, side-tie_shirt, sidelocks, sky, sleeveless, sleeveless_shirt, smile, swimming, swimsuit, swimsuit_under_clothes, toplow, white_shirt