I recently watched an interesting documentary about face removal transplants and how incredibly hard they to pull off (no pun intended). A recent success was about a woman that passed out and when she awoke she found that her dog had chewed the lower part of her face off.
This face removal is fortunately less gruesome but still chilling. This is a digital illustration called ‘Mask of Sanity’ created by Deviant artist Mike Watson A.K.A. Quasilucid. Looking through his portfolio I also found these skulled figures.