1girl, ahoge, black_hair, black_one-piece_swimsuit, blue_one-piece_swimsuit, blush, breasts, brown_eyes, competition_swimsuit, covered_navel, cowboy_shot, dated, kantai_collection, large_breasts, long_hair, looking_at_viewer, montemasa, multicolored_clothes, multicolored_swimsuit, one-hour_drawing_challenge, one-piece_swimsuit, simple_background, smile, solo, swimsuit, twitter_username, two-tone_swimsuit, ushio_(kancolle), white_background