really nice framing and composition makes this rather average sunset more interesting. you might want to try cropping the shot to remove a lot of black on the right and trim up the bottom a bit to make the shot more panoramic. there is just way too much black as it is currently.
It is a bit on the small side for cropping... but the effect rendered just might be worth it. I followed the advice of those above and made it 610x378 from the top left corner. Try it and see what you think! After all it is your eye that is master of your pic! :o)