I would have crop the frame, where your signature start. Please don't be mistaken. I'm not intending to leech your picture or anything. It just so that the rest of the image (from your signature downwards) destroyed the imagery of the tree, especially the clump of greenish stuff on the bottom left hand side, and the semi-circular clump on the right. By cropping off from the signature onwards, the trees would effectively originate from one area, and branch up and outwards. That would make the whole scenery look more majestic.
Just my 2 cents worth.