This is the second and third part of a big skintone painting tutorial I did last year. (it just wasn't until now that I found the time to assemble everything and finish it) Please note that this is just "my" way to learn/paint/observe, and I can't guarantee that it'll make things "click" for everybody; I'm not a teacher after all and still have SO much to learn!
By the way, I put this in the "Photoshop" category since I used Photoshop here (with a Wacom Intuos tablet), but ANY painting program (Gimp, Painter, SAI, Opencanvas) can be used; since this isn't a software-specific tutorial - it's just about painting skintones!
Thanks for this it will be very helpful for my next piece of work me and a friend are swapping styles, she's done one of my pictures in hard cells and I'm doing it soft cells x3 so this is very helpful xP and I use photoshop so that's even better xD