So much fun to paint!!
These guys are a major pain to cast. Though the mold is small and there isn't a lot of surface area for me to cover, it takes me a looooong time to get the paper down into all those nooks and crannies and around all those little bends at the edges. It's very slow, meticulous work. It takes me seven to nine hours just to finish a cast and get it ready to paint.
I made one major refinement to my method as I worked on these. I sealed the edges of the masks with... coffee filters. Since the fronts and backs of my masks are made out of two different kinds of material, I had originally been reluctant to seal the edges with anything but glue, as I had thought any material that would match and blend in with one side of the mask would not with the other. But coffee filters are a truly miraculous kind of paper. When coffee filter strips are applied in torn strips and smoothed down with thinned down glue, they just... vanish. If they're applied well, it's almost impossible to tell they're even there, no matter what surface they're applied to.
Thanks Creaturiste for the tip!!