I think you could afford to share a little more of this on the forum Eric!
Anyway, using the foam for making trees is a great idea, although I would have torn the pieces off the foam with my fingers rather than used scissors as I think the foliage does look a bit blocky.
I suppose you can also use it for hedges in a similar manner?
Finally (and I think it may have been AndyM on these forums whom I first saw use this technique) you can shape it in various ways and then soak it in watery plaster; when it sets, you'll have a rigid structure which can then be painted and further textured if required. Good for coral structures and rocky outcrops I think!
