I'm rather on John's side. I pretty much like it the way it is. My only gripe, and this is a personal preference, is that the corners of the sky are a bit too far apart, tonality-wise. If it were my photo (again, personal preference), I'd lighten the upper left a bit, and darken the upper right, just a little, to give the sky a bit more consistency of tone and strengthen the upper right corner.
Did I mention that was personal preference?