rule 34 2023 abs anthro apron apron aside apron only beard biceps black hair bulge canid canine canis claws clothing deltoids eyebrow scar eyewear facial hair finger claws flexor carpi fur glasses grey apron grey body grey fur hair hi res highlights coloring male mammal matcharyu multicolored body multicolored fur muscular thighs navel outline nipples pecs ponytail red eyes red highlights scar short ponytail simple background solo tan body tan fur triceps two tone body two tone fur white background wolf 8434574