It is a very well taken photo and your exposure looks good. However your horizon line is splitting your picture 50/50 which takes away the impact your photo deserves. I would be inclined to crop out some of the sky especially above the top most clouds. I would also remove the foreground so that the land was feathering in 1/3 of the picture and the sky was the remainder. I see this picture working best in a square format. Of course this is just one persons opinion.
Thanks for the comments. Vincent I believe you right there is to much sky. Though not a believer in a strict rule of thirds. To me the foreground is more important than the sky. I am going to reprint this maybe tonight and move some around but definitely losing some of the empty sky at the top. Thanks again for the input. I will repost the changes soon.