I've been struggling with the make-up masks, and just have a quick question: the Blender will only do as its name implies: it blends. Right? So, to superimpose the result of one mask over another like, say, eyeliner over eyeshadow, I'll need to invoke a completely different node strategy.

Among other things, I tried replacing the Blender node with Color_Math (Add) but it weirded out the entire skin texture... can't just willy-nilly change/add a node, I quickly found out. They need to live in harmony with the other forty-million nodes.

Anyone want to suggest a tree to bark up?

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks