My attempt at 3D Yoda
Unfortunately it was so thin in places that the old scrap wood I used split so Yoda lost the tip of his ears and a shoulder.
But other than that it turned out well
In making it I think I know what when wrong with yours. When I first imported the file I set the model height to be the thickness of the material.
But after that I re-sized it larger, forgetting that made Yoda thicker as well. Making his face above the surface of the material after re-sizing. So I had to go back and adjust his trickiness.