1girl, artist_name, ball, bare_arms, bare_legs, bare_shoulders, beachball, bikini, blue_bikini, blue_hair, blush, breasts, cleavage, collarbone, grey_eyes, groin, holding, holding_ball, holding_beachball, kantai_collection, large_breasts, long_hair, mizuta_kenji, multicolored_hair, navel, official_alternate_costume, one-hour_drawing_challenge, open_mouth, ponytail, red_hair, sidelocks, signature, smile, solo, south_dakota_(kancolle), sports_bikini, swimsuit, twitter_username