She is a derivative figure because DAZ said she is! I'm no lawyer, I will say how she was made though, she is 100% original mesh, the parts were fitted to Supermodel Vickies' shape, SMV uses Vickie's mesh, which is all modified at the vertex level to the new shape, every sticking polygon. So she is original mesh with an original shape, where Amy is (now) original mesh with what sure looks like the Posette's shape- look at Anton's pics! Like to get DAZ's comment on this, I just emailed them. Only thing I can think of is the Posette's licence (Poser's actually) isn't as restrictive as Vickie's.