Thanks Nancy

The background was just a pic I painted a few weeks back in TwistedBrush. I love that software as the particle brushes enable you to paint trees (yeah, trees again

) and foliage in seconds. Loaded as a layer in A:M with a bit of fog. An added Rim light on the tree and all done.
Rodney : I will try out your roots suggestion. Having severe problems with my laptop at the moment though - hmmm, I may ask for advice on that in the Off topic section.