1girl, black_hair, black_one-piece_swimsuit, breasts, closed_mouth, competition_swimsuit, cougar_(cougar1404), covered_navel, green_eyes, grey_background, hand_on_own_hip, letterboxed, light_smile, long_hair, looking_at_viewer, medium_breasts, one-piece_swimsuit, original, simple_background, solo, standing, swimsuit