One of the biggest problems I had when trying to retouch black skin tones was the dull color I would get when using the color pallette. Well, Eureka!, I think I have found a way to eliminate that problem to make the skin tones more realistic. I found it easier to use the brushes in the soft light mode with the air brush turned on and so far, it has worked every time. You have to play around with the brown colors, but I also found that if you use 100% of the predominate brown color you need and use 25% to 50% of a reddish tone will get you what you want. I will post a couple so you can see what I mean. If this "tip" was common knowledge, remember, I'm still a biginner!