A "Major Bug" quoted straight from the CK Wiki that I do not see listed:
There is currently an issue where created actors do not export their facial data (scars, make-up, tones etc) onto the rendered NPCs in game. This can be temporarily rectified by opening the console and selecting the actor in-game, and typing "setnpcweight x" for the selected NPC. However, this only sets the skin tones to a normalized state, with no facial traits.
I hope they're planning on fixing this soon, or else I may have to resort to other, more complicated and more time-consuming methods just to get simple things like neck color, facepaint and scars to show up on custom NPCs, if it's even possible to do so.

Okay, part of this is already up there, but I'd like to point out that none of the face part colorations work, none of the facepaints/tattoos work, and none of the scars work. It is completely and thoroughly broken, and I can't understand why. I mean, didn't they use these functions to create their own NPCs? How can it be broken now? Anyway, this needs to be fixed so I can at least create NPCs without being driven crazy by it.