This is quite accurate model of human skull. It is modeled in a way so it has only quads, so there won't be any problems in sculpting programs like Zbrush.
Model is separated in 4 objects so it can be easily edited.
There are 3 versions available, 3ds max 2013 is the main format, it uses default renderer with light setup that I used to create presentation images. It also includes full modifier list as it was when I created the model.
OBJ versions are available in high-poly and low-poly versions. There is not much difference between the two, but in case someone needs both, they are there.