1girl, blue_one-piece_swimsuit, breasts, collared_shirt, covered_navel, dress_shirt, grey_eyes, hibiki_(kancolle), kantai_collection, long_hair, looking_at_viewer, one-hour_drawing_challenge, one-piece_swimsuit, open_clothes, open_shirt, ray.s, school_swimsuit, school_uniform, shirt, simple_background, small_breasts, solo, swimsuit, undressing, white_background, white_hair, white_shirt