love them! you're very talented! the ponyos are so cute!
another rec on glaze: the sculpey matte finish glaze is my favorite, it's very thin and i find a lot of the thicker glazes (triple thick especially) get gummy and can be hard to work with. play around though obviously atmospheric conditions are going to be a big factor.
(i have also used clear nail polish with varying degrees of success so that's something you could use if you're in a pinch... also gold ol' fashioned polyurethane.)