Wow, that is really different, I think maybe the layers are stacked skewed and then you would do some carving? There is no way I would be able to get this to line up exactly like this one does, just no way.
Maybe Doug could help?
I believe Doug helped someone with a cake like this, and yes, he said to do it just like okred described!
This cake was featured on the Knot.com. You can try Emailing the decorator.
Thanks guys. I think I might have talked her into something a little different, but along the same lines. We'll see. Thanks again for your help.