Ok - don't know where the hell my copy of Morato is located right now - I have searched all the usual spots and it is nowhere to be found.
But I did find this online fine lines. Click on the 8th picture top row.
I suspect that what he has done is drizzle a fine line of perhaps bronze into an empty half sphere mold (or it might have been sprayed first with 70% dark chocolate with cocoa butter), followed by a spray of black. From his descriptions at the demo he might follow that up by another layer of some sort of luster dust and then another spray of a different colour behind that.
