Pete, Thanks. I use very fine steel wool on the sculpey to smooth it out. Just be careful as to how much pressure you put on the piece as too much force or rubbing in one area for too long can obliterate the detail. You can use Scotchbrite also but it's better suited for using on 2 part putty's harder surface as it's not as gentle on the sculpey.
Anders, Thanks I'll cover the entire process, start to finish.~Gary