1girl alternate_costume animal_ears bangs bare_shoulders black_hair black_leotard blue_eyes blush bow bowtie breasts covering covering_breasts cowboy_shot cropped_legs detached_collar ebifurya fake_animal_ears highleg highleg_leotard highres kantai_collection katsuragi_(kancolle) leotard leotard_pull long_hair looking_at_viewer navel one-hour_drawing_challenge open_mouth playboy_bunny rabbit_ears red_bow red_bowtie simple_background small_breasts solo thighs twitter_username white_background wrist_cuffs