Thank for the visit. I was not at the conference, but Merry-Lee Rae presented a lecture on cloisonne and used my images.
On carved enamels, yes I used a layer of flux and two layers of transparent red enamel. You can use a very fine diamond bit and arkansas stone bits. Afterward you should glass brush and or steam the piece to remove any trace of the stone and flash fire.
But as you know the layers are thin as transparent enamels need to be for clarity. And if you lay in the enamel in that small of a space it flows even. The chased flower petals had ridges and valleys. To enhance the visibility of this I carved in the top layer to follow this and expose the ridges more.
The Nautilus is also carved. This is posted in the topic Enamels, under Carving in Enamels. But this is a complete cloisonne piece, so the wires are at least .040″ high. And I actually over filled this, then carved the spiral of the shell into it.
Good luck, Patsy Croft