Why do you use the maximum shine and 0 bump on eye shadow CSBs? Is it your intention that where there is eyeshadow, that material is glass?

Yes you're on the right track.

However, I would not keep changing the name as I do the mixes.

I'd just do:

csb = skin
csb = csb.mix[highLight, hiLightMask * .3)
csb = csb.mix(eyeShadowA, ...)
csb = csb.mix(eyeShadowB, ...)

This may not be obvious why this is better. Here's why.

What do you have to do in your script to skip one of the mixing steps. All I have to do in mine is comment that line out with a #.

What do you have to do in your script if you want to change the order? All I have to do is change the order.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)