These are amazing! If that's without 3D modelling/touchups I am very impressed. They should put this feature into standalone game as an optional extra.
Most of work was done in Face Gen so you need just good hi-rez picture of face what you desire,
then few minor tweaks can be done in in-game face editor or in CS, also there is additional features thats by some strange reason was not added into game like
eyelashes, they make face more living not like plastic doll.
Eyelashes For Vanilla Races
http://tesnexus.com/downloads/file.php?id=24085
This and some custom hairs its all additional modeling what was done, no one of this two options required from player, just install appropriate mod created by skilled modder.
Or download already done Face thats you like from this author page
Chimera
http://tesnexus.com/modules/members/index.php?id=309137