Alot of the reflections and highlights are "faked" with transmaps on the corneas or for V4 the "eye surface" material,it is quite effective though if you apply it in the alpha channel and then bump up the luminosity a bit.This particular set i dont know, but i,like FrankT have trouble using the Poser shade tree option and my machine is pretty good. It like many things just isnt implemented very well into Vue engine.

"Many are willing to suffer for their art. Few are willing to learn to draw."