Generally the sillohette look is good but the image is so low key. It lacks any real highlights. the mid-tones look fantastic but the overwhelming darkness throughout the image really hurts it. I might try cropping it to make it that much better because there are lots of little things in the photograph that I like but the compsoition as a whole doesn't appeal to me. I had to fullscreen the image to get the tones that make this image phenomenal, whcih would be reds.
Normally I loath I might scrap the traditional rectangle and elongate the image a little. I downloaded the photo and cropped the image to 5184x2244. The lines I chose were the bottom of the landscape to the top of the highest cloud. Anyways, just a suggestion.