1girl, akatsuki_(kancolle), bikini, black_bikini, blue_eyes, blue_hair, blush, breasts, collarbone, cropped_legs, ebifurya, frilled_bikini, frills, kantai_collection, long_hair, looking_at_viewer, navel, one-hour_drawing_challenge, side-tie_bikini_bottom, small_breasts, smile, solo, stomach, swimsuit, thigh_gap, twitter_username, white_background