You should take a look on eBay. They often have coyote mounts for sale and you might see a pose that you like.
The only pose I've seen in person is one that my uncle had done about 8 years ago. The coyote is mounted standing flat-footed, looking to the right with its ears back (non-aggressive). It is submissive looking, which I don't care for.
Way to go on bagging that coyote!