1girl, arms_behind_head, black_choker, black_one-piece_swimsuit, blue_sky, breasts, choker, cloud, competition_swimsuit, facial_mark, fnzz, girls'_frontline, green_eyes, grey_hair, highleg, highleg_swimsuit, hk416_(girls'_frontline), large_breasts, long_hair, looking_at_viewer, multicolored_clothes, multicolored_swimsuit, one-piece_swimsuit, sky, solo, standing, swimsuit