When the snarl goes up the snout should widen/stretch and rise a bit also. Extendable/retractable claws. Something to help the mane like spikey extensions or extra locks of hair. A prehensile claw at rear of paws and griffon wings with... O.K. Maybe not. Teeth yes. Strips of hair on the backs of the legs would be cool too. You the man Traveler. Anvil.