Thanks all,
@Hannes - Yes! I find a little chromatic aberration can really help a scene like this. It can add the impression of a little more separation between the foreground objects and the background areas.
@Dune - The heather is a really great model, thanks for making it available. It is tricky close up since the leaves are on such obvious planes, but the blur hid that pretty well.
@ajcgi - Thanks, the depth of field was done with an alpha version (search the forums for more information on this) but it is generally easier and can have smoother results by rendering out a depth mask and adding the depth of field in the gimp or photoshop.
@Martin - Wish I had more time, but maybe it is one of those things where you just have to make more time for rendering.
