1girl, bikini, blue_bikini, blue_eyes, blue_hair, blush, breasts, dated, hair_ribbon, isuzu_(kancolle), kantai_collection, large_breasts, long_hair, maru_(marg0613), navel, one-hour_drawing_challenge, open_mouth, ribbon, simple_background, single-shoulder_bikini, sitting, solo, swimsuit, twintails, twitter_username, wariza, white_background