The only improvement I can see to make to this photo is to add a bit more light. Oh, and for that to be my layout! Very nice, incredible backdrop, beautiful believeable transition from background to foreground.
I've been in that area, and on that mountain. This background depics sporadic cloud cover, and the shades and lighting are 100% accurate. Anyone who says differently needs to exit his basement and go for a hike once and a while.