Attached Link: Aery Soul

Looks to me like they changed the layer style to soft light. I don't think overlay, because there would be lighter bits where the highlights on Shakira's face were. Soft light clips more of the extreme highlights and shadows than overlay does. Try that :o).

I don't know personally of any tutorials, although I'm sure there are some. If you happen to have Victoria 3, Ecstasy made some nice textures you could practice on. They're over at Aery Soul. I mean, it's not Victoria 4, but the principle is the same. They are down at the bottom of the page.

I pretty much learned to create skin textures from going over someone elses, just to figure out how to line up all the shadows for around the eyes, nose, etc. DON'T sell or give away a texture you  created with the help of someone elses texture tho...I'm talking practice! LOL.

Laurie