I’m not happy with this for the following reasons:
Shitty Source trees are a bitch to isolate, so the line between the sky and the trees looks crap.
The top level of trees look really weird and devoid of lighting because of the motion blur.
The smoke isn’t as good as I would like it to be.
Fear the wrath of the “bad reading” rating if you mention any of those points while failing to offer a means of improving said point(s).
Original (feel free to edit): http://img195.imageshack.us/img195/8179/gmflatgrass20080004.jpg