I'm experimenting now with Aves Sculpt A&B, don't have enough of a result yet to post anything for the forum, though. I picked it up, though, after hearing from others that it's relatively easy to work with.
I like Sculpey enough, from the perspective of working it, but the heat-curing can be tricky, I've found. I have some old Miliput but probably won't get more, when I use up what I have. I use it now for things like sacks, loaves of bread, other basic shapes.
What's the sequence that you followed, CK? That is, did you use Sculpey first and cure it, then apply the Miliput, or was it some other sequence? If you started with Miliput and added the Sculpey, did you notice any effects of heat on the Miliput, when curing the Sculpey?
Prost!
Brad