Mm, generally speaking I'm not happy about that. A few other people have done similar things- using Jean or Chocolate Milkmaid for their MySpace or Yahoo! ID photo.
There is an alternative, though- why not get BAR-1 to draw your -specific- werewolf character? His convention rate is $15 per character pencilled, $20 inked- so $40 plus postage would get you pics specifically tailored to your needs.
Ben, care to comment?