"Just curious but what is it about vue that does not render skin tones well ??" Try this: change skin materials to "one sided" and "back lit" in the materials lab (or whatever it's called in Vue.) Place a subtle pink/red spotlight behind the figure. Voila! Kinda-sorta subsurface scattering in Vue. Only problem with this technique is that it can do odd things in some cases to Poser figures' eyes. This can be fixed in postwork or by doing a second area render of the eyes and then compositing.