And another thing

For skin color variation, i have manipulate the Diffuse_Color in HSV, setting it in EzSkin Skin Tab (see picture lower)

I started from color 255/255/255 and lowered to 232/255/255 and the result is the rendering above.

Why i started from 255/255/255 ?

Because manipulate this color gives to "my eyes" the best rendering skin color result.

But i ask to myself if there is another way (the correct way or a starting point ) to choose the color to start from.

may be analysing the original skin color or something else?

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.