rule 34 3 toes all fours anthro arched back ass backsack balls canine cheek tuft chest tuft chip the wolf claws cookie crisp countershade face countershade tail countershade torso countershading digital media artwork ears back elbow tufts eyebrows full length portrait fur grey countershading grey fur grey tail half closed eyes head tuft heart knee tuft looking at viewer looking back male male only mammal multicolored fur nude open mouth open smile pink tongue portrait presenting presenting hindquarters purple nose raised tail rear view rotten robbie shoulder tuft simple background smile solo teeth toes tongue tongue out tuft two tone fur two tone tail white background wolf 2633605