I think for the most part it's heated molded polystyrene.
that's is the reason i wondering how gamisan's did it?Gamisan's cy girls r too hot n too cool!
so would i! the piece the Gamisan piece i have looks like the armor is vacuformed to me. it's completely smooth on the backside. like maybe he sculpted the armor pieces then vacuformed it over top those. that would explain why a lot of the same pieces are used in his works.That's something I'd really like to know, too. His armor is just stunning. I'd love to see a tutorial on it....