rule 34 2016 3 fingers 3 toes abs anthro arachnid arthropod athletic bald balls barefoot biped black claws black exoskeleton black sclera bracelet casual nudity circumcised claws croxot croxot artist exoskeleton fangs flaccid green eyes grey background hairless jewelry long tail looking away male male only nipples nude pecs penis scorpion simple background solo spines standing stinger tattoo thales croxot toe claws toes 2540530