1girl, ass, beach, bikini, blue_eyes, blue_hair, character_name, day, from_behind, halterneck, hatsune_miku, headphones, icon_315, long_hair, nail_polish, ocean, on_ground, outdoors, sitting, sky, solo, string_bikini, striped, striped_bikini, swimsuit, toenail_polish, toenails, twintails, very_long_hair, vocaloid