I loved Warm Bodies as well! For a movie that could have gone wrong in so many ways, it delivered SO well! Your drawing is excellent, but I think there is something off about his lower lip. But never the less, it's a really good drawing, and I recognized him without even seeing the title.
I read the book, and I was really happy that they removed parts of the book from the movie. There were some things in the book I thought were a little odd, but the movie was just perfect. And you're welcome.