Nice capture. Two things bother me about it though. It looks to be quite soft. I'm a fan of soft focus shot in general, but I don't see where it adds to this composition. The foreground is also quite dark and I find this to be a tad bit distracting here. When I cyber crop this into a square by scrolling up a bit, the composition is much stronger. Oops, I guess that was three things.
TC
Way too much deadspace in the lower half, doesn´t work as a "negative space" to my eyes - e.g doesn´t improve the image. Too underexposed in my opinion, this is an advanced editing challenge so you should've been able to extract some details from those shadows.
I love the color here, from stark and desolate greys, with the river leading up to the beautiful orange sunset. The photo might benefit from being cropped just below the bridge, and maybe some levels work to bring out a little more definition around the bridge. I thnk that bridge would make a good bottom frame for this shot.
This is the type of photograph in which the foreground should have good detail as well as the sky, in my opinion. This can be achieved by using gradual neutral density filters. Composition, as far as I can see, is quite good except for the fact that the horizon is slightly tilted to the left (and if this is intentional, I'm afraid I fail to see the purpose).