rule 34 animal genitalia anthro artist name backlighting black body crystal erection fangs forked tongue full length portrait genital slit genitals grey body grey scales hi res holding crystal holding object kardinaluz light lighting male markings navel nude orange markings orange penis orange tongue outside penis portrait reptile scales scalie shadowwolfhunter slit snake solo spiked penis spikes spikes anatomy standing tail markings three quarter view tongue tongue out 7048444