1girl, alternate_costume, black_one-piece_swimsuit, blue_hair, blue_one-piece_swimsuit, breasts, competition_swimsuit, covered_navel, dated, hair_ribbon, impossible_clothes, impossible_swimsuit, isuzu_(kancolle), isuzu_kai_ni_(kancolle), kantai_collection, large_breasts, long_hair, looking_at_viewer, montemasa, one-hour_drawing_challenge, one-piece_swimsuit, open_mouth, ribbon, sitting, smile, solo, swimsuit, twintails, twitter_username, two-tone_swimsuit, white_ribbon