1girl, artist_name, black_eyes, black_hair, black_one-piece_swimsuit, braid, breasts, brown_hair, competition_swimsuit, covered_navel, cowboy_shot, gakky, gradient_hair, kantai_collection, long_hair, looking_at_viewer, multicolored_hair, one-hour_drawing_challenge, one-piece_swimsuit, single_braid, solo, standing, swimsuit, yamashio_maru_(kancolle)