Did you ever get it done? There are some animated/interactive Escher pieces on http://wonderfl.net/tag/escher , but no Metamorphosis - it looks difficult to animate...
Unfortunately not. I did some experimentation early on and while I got some interesting results, I wasn't ok with releasing it unless it honored the original work. Now that I've spent a couple years honing my skills, though, it may be time to revisit it.