This is a simple skull which could be used for decoration or with a little tweaking, animation. I didn't go for realistic, just something to be used as a prop or as a starting point for more if you decided to build on it. Materials are included in a zip file as well as the reference image used to model. One 5 sided poly exists on the inside of the nose bone (out of sight) but the rest are quads. The 5 sided poly can be easily removed by deleting the un-needed vert.