Thanks. I used one of 2 "techniques" the GK guys to do bring the skin alive. One is to flick tiny drops of many colors of paint on the skin and then lightly do a top coat to settle the drops underneath. I first saw this watching Rafael Robledo work - https://youtu.be/tQizFgzbvYY
BTW, This guy is absolutely amazing.
But I can't get the dot of paint tiny enuff so I do the older technique of just doing squiggles all over the skin -
I used red, blue, yellow, green and a little purple over a light gray primer. I Spray a clear coat after every 2 colors so if I screwed up the last color and I need to remove the goof, I wouldn't go all the way to the base or even worse the primer coat. Rafael suggest a clear coat after every color until you get used to the technique.
After the last clear coat was dry I hit it with the flesh color, but making sure not to apply it too heavy so that all the other colors disappear. It's tough to know when enuff is enuff - so go slow.
Wow...that is excellent! Thank you for sharing this picture and the information!