1girl, ankle_grab, bad_pixiv_id, beach, beach_towel, beach_umbrella, bikini, blue_sky, breasts, brown_eyes, brown_hair, checkered_bikini, checkered_clothes, cleavage, cloud, day, green_towel, halterneck, indian_style, isosceles_triangle_(xyzxyzxyz), large_breasts, looking_at_viewer, medium_hair, navel, ocean, original, outdoors, sand, sitting, sky, solo, swimsuit, towel, umbrella, v_arms, water