I do like what what done with the clouds, kinda where I was thinking earlier. I was not thinking as dramatic as you made it, more just accenting the already there shadows...however I do like what you did there.
Not sure what went on with the tree line...but it seems scratchy now...almost too sharp?
*edit*
Just wanted to say also that Its yours not mine...so make it how you like it. lol. I love black and whites and the many things that can be done to them, so I am always just trying to think different and change stuff. lol.