My Photoshop Classroom

While officially credited in Sam Raimi’s "Oz the Great and Powerful" as a costume designer, artist Michael Kutsche also produced all of the character designs for the film, as well. In this article, we will take a look at some of the wonderful character illustrations that he produced for the film.
Source : http://psd.tutsplus.com/articles/inspiration/oz-the-great-and-powerful-michael-kutsche/