Ben, I like the cool, twilight mood you have achieved here. I also like the sense of depth created by the ability to look deeply into the forest in the background. The cooler white balance is very effective at communicating the twilight feeling. Composition-ally I have a problem with the foreground tree on the left, it is too close to the edge of the frame, I would re-crop this to remove that tree.
I like the contrast between the foreground green trunks and the bluer trees in back. The lower part of the frame seems cluttered and distracts a bit from this contrast maybe.