To study the magic behind this great face that is a fantastic offer. I will send you an instant message with my private email immediatly. I am very interested to know how you do it. And actually (maybe more people want to know) what exactly the role of Shader Ops is in this picture. is it some kind of effect of the tiny hairs people have on their face, or is it a kind of sub surface scattering faking you are after? It is refreshing to see this kind of work coming from my beloved app.