This is a really beautiful sunset. I especially like the palm trees against the sky. They always hold a bit of warmth and magic to me since we have none here. I would love to take more twlight shots but the ones I take turn out a bit grainy due to kicking up the ISO but I am really picky about that. (may just need a better camera) Yours does not look grainy at all. Great shot.
i suggest making the trees and buildings completely black, the trees and building ruin a lot of pictures i think, but making them black gives it more of an artistic look to it, but thats just my thoughts, i don't like buildings to much lol