1girl, alternate_costume, ass_visible_through_thighs, bikini, breasts, greyscale, h2_(h20000000), haguro_(kancolle), hair_between_eyes, hair_ornament, hand_on_own_chest, kantai_collection, looking_at_viewer, monochrome, navel, o-ring, o-ring_bikini, ocean, open_mouth, outdoors, short_hair, solo, sun, swimsuit, thigh_gap