1girl, ass, bad_pixiv_id, blonde_hair, blue_eyes, blue_sky, breasts, cloud, competition_school_swimsuit, day, from_behind, horizon, hyugorestion, kofune_ushio, long_hair, looking_at_viewer, ocean, outdoors, parted_lips, school_swimsuit, sky, small_breasts, solo, summertime_render, swimsuit