I wish Tioga Pass as open right now!
I like the B&W conversion Roman. My only suggestion would be to check out the posterization in the sky and correct the tilt perspective if possible.
Yeah...it was bothering me too. Unfortunately the file is an old D2X file and 12 bit. My 14bit files. Its one of the reasons I sold the D2X and got the D300 in its place. So tough to fix.....and I don't know any techniques to reduce it. Just something I have never worked on.