There are many great werewolf pictures as well as great werewolf artists out there.
Goldenwolf, Blaqriot and Maglot are some of the top IMO.
since I don't have permisson to post any of thier art I will give links.
Goldenwolf's den
Maglot's werewolf art
sorry I don't have a working link for Blaqriot's page, but if you happen to see any of Jamie Sidors work you will agree she should get her ass to Hollywood and show them how to design a werewolf.