The second one is better. I agree with everything cynlee said, especially about focal point. What am I looking at in the first picture? It looks like a good scene for opening credits. It could also use a bit more contrast. On the second picture I see that you desaturated it considerably. Gives it a nice dreary look. Could be better if there were more clouds in that blank spot of sky, but I can hardly blame you for that! I would try cropping some of the top and bottom off (like a widescreen movie) and see what that looks like. I think the picture might look a bit richer that way. Either way, good atmosphere.