This version in general shows more contrast in lighting. Therefore it should render skin details better, in closeups you can see pores and hairs better.
The poses/tilts also tend to slightly vary, as well as the shape of mouth and tongue. In most cases it looks better, but if you feel things are odd you can revert to v1.1
I would appreciate comments on this version, as it is actually a merge of v1.1 with my future v2.0 release, which really pushes these differences to a new level to enhance the realism even more.