The idea of mystical animal aspects - isn't quite working well. Instead a better idea seems to be to base the aspects off of real animals that are used in many ancient cultures around the world including - Asia, Africa, Australia & the Americas.

While I've posted a strictly mammalian list above. This list may be incomplete. The other idea would be to base it off a generalized native predatory animal spirits - like the Totem warriors use.

Basically something like this.

Panthers: any Large Felines - such Lions, Leopards, Tigers, Cougars, Jaguars, & Cheetahs

Canines : i.e. Wolves, Coyotes, Hunting Dogs, & Dingos(For Australians)

Bears: i.e. - Polar, Grizzly, Brown, Black, Sloth, & Panda

Raptors: i.e. Birds of Prey - as in Eagles, Hawks, & Owls.

Reptiles: i.e. Serpents(snakes), Lizards & Crocodilians.