1girl, ahoge, alternate_costume, black_gloves, black_hair, black_leotard, black_thighhighs, breasts, brown_eyes, dated, elbow_gloves, feet_out_of_frame, gloves, grey_background, kantai_collection, leotard, long_hair, maru_(marg0613), one-hour_drawing_challenge, simple_background, solo, standing, thighhighs, twitter_username, ushio_(kancolle)