Okay, you've probably already seen one panel before, but this is where the good stuff is unveiled and the other three are showcased in all their glory. Of course, I'm not going to show you them all at once - where's the suspense in that?
Please remember that this thread is only for discussing the artwork and there are (and will be) others for discussing the film itself, the disc and other aspects of the release.
So, without further ado, here is the first panel, painted by Rick Melton: