1girl, beach, bikini, blue_eyes, blue_ribbon, blue_sky, cloud, cloudy_sky, cowboy_shot, day, frilled_bikini, frills, grey_hair, hair_ribbon, halterneck, holding, holding_towel, horizon, kurono_mitsuki, looking_at_viewer, medium_hair, multi-strapped_bikini, navel, ocean, open_mouth, original, outdoors, ribbon, sky, smile, solo, standing, sunlight, swimsuit, towel