As someone already said, you can try the "mattetranslucent" material for skin (if you didn't already, it's hard to tell).

Open the .lxm file in Notepad, and change all skin materials (pretty easy to find) from "glossy" to "mattetranslucent".
The "mattetranslucent" material needs two values, Kr and Kt. Kr is what we know as the diffuse (plug your texture in it), Kr is the light shining through.

Here is an example:

MakeNamedMaterial "MyFigure/MySkin" "string
type" ["mattetranslucent"]<br></br>
"texture Kr" ["Color_Mul_123"]<br></br>
"color Kt" [0.1 0.03 0.01

Play around with values for Kt as the right value depends on your texture map (dark/light skin).

You can also change the "eyesurface" material to neutral colored glass ( I use the water IoR, 1.33). I didn't decide yet if you should switch it to "architectural" (see my post above) or not.