Truly a gorgeous image. I like the composition quite a bit. Personally, I would not change the crop.
You've also used the inherent complexity of the scene to your advantage. Intersecting diagonals, in both the upper portion and the reflection, work very well.
Really great detail in most of the midtones. Again this is largely a matter of taste and artistic intent - please consider whether a bit more shadow detail in the trees, and highlight detail in the sky, might be helpful. Given the amount of detail in the rest of the image, this makes sense to me. Last, the trees on top of, and hanging off the bridge have only moderate detail separation in the leaves - do you think this is worth working on?
Again, very well done. Makes me want to go there!
David SaffirGuruShots Photo Critique