[sodacat]

Mike Ploog (comic artist and storyboard artist for John Carpenter's The Thing and Dark Crystal) did concept art of the effects in this movie. The art book (ISBN 978-0-9966689-1-0) that recently came out of his has a page with the concept art of the sequential makeups for the witch transformations in this movie.

I'm not going to destroy the binding of my copy to scan it, but the book's well worth it if you want really high quality versions of his gorgeous Ghost Rider and Werewolf By Night covers.