1girl, ass, blue_one-piece_swimsuit, blue_ribbon, brown_eyes, brown_hair, clothes_pull, cowboy_shot, folded_ponytail, from_behind, hair_ribbon, kantai_collection, kasuga_maru_(kancolle), long_hair, looking_at_viewer, official_alternate_costume, one-hour_drawing_challenge, one-piece_swimsuit, one-piece_swimsuit_pull, profile, ray.s, ribbon, school_swimsuit, simple_background, solo, swept_bangs, swimsuit, white_background