Hello again! Sorry for the belated response. I wanted to keep messing with the character before I replied.
With that said, now I've gotten something that I think works for the time being, what we've still found is that the settings seem to be tuned more for lighter skinned characters if that makes sense? And that the same shading for darker skin can come off as somewhat awkward. It's doable, and the advanced settings make a whole lot of difference though! I have gotten something I can use now, but I think it could use some more fine tuning is all.