1girl, aqua_eyes, aqua_hair, arms_behind_back, beach, bikini, blue_sky, blush, contrapposto, cowboy_shot, day, frilled_bikini, frills, hair_ornament, holding, holding_innertube, innertube, long_hair, looking_at_viewer, midriff, navel, outdoors, sky, smile, striped, striped_bikini, swimsuit, twintails