I like the sign, it balances the image. Gives some reason to have all that empty space, and a little context as to where this is. There's also the contrast of a natural tree, and the man made sign (which suggest the whole scene is also next to a man made road). The two much smaller trees/bushes near the main tree are unfortunate though, they don't add anything at all to the image and are distracting. I would have also liked it if you got closer to the ground, so the fence was more prominent, or higher so it wasn't visible at all.
Overall its great though. I love the combination of harsh contrast in the silhouette of the tree, and the smooth softness in the rest of the image.