rule 34 2021 4 fingers 4 toes animal genitalia anthro balls black ring bret reynard brown eyes brown markings canid canine chin scar claws dipstick tail ebonyleopard english text fangs feet fingers flat colors fox genitals gloves marking hi res hybrid leg markings leg scar lutrine male mammal markings membrane anatomy mustelid nude open mouth ring marking scar sheath signature socks marking solo tail markings text toes tongue webbed feet webbed hands 6158870