Ok, it worked, thank you, but I can't really say it's a "better" render. 

There is a lot of tweaking that needs to be done, but where and how do I start?

Compared to the original pre-VSS renders, the eyes are too bright, the lips have lost color, the teeth are more real looking but too gray, the skin has a nice touch but too bland or monotone in color, and she looks more of black skin tone than pinkish-yellow hue.

Is there a VSS tutorial on what I can adjust to get the face to look more like (and hopefully better) than what I originally had? I know how to tweak the face in the Material room but I don't want to  change the settings and destroy what VSS did if I can't make it better.