1girl, arms_up, breasts, casual_one-piece_swimsuit, fuwafuwatoufu, grey_hair, hair_between_eyes, hair_ornament, hairclip, headgear, i-201_(kancolle), innertube, kantai_collection, long_hair, looking_at_viewer, low_twintails, lying, medium_breasts, official_alternate_costume, on_back, one-piece_swimsuit, parted_lips, polka_dot, polka_dot_swimsuit, simple_background, solo, swimsuit, twintails, twitter_username