This seems more abstract to me than anything. It's hard to comment on focus. It looks soft all around, but really it's mostly clouds, so how sharp would it be? The color is nice. I like the orange and yellow together. It looks good that way.
Having the subject dead in the center of the photo works sometimes, and sometimes it doesn't. This is one of the times where I think it doesn't. Since there really isn't anything else in the photo to hold our interest but the colors, I think some kind of nice arrangement is a must in order to add some kind of additional visual appeal.
I wonder if a very nice thin orange inside border might look good on this as well. It would be worth checking out anyway.
Overall, I think it's a neat looking sunset, but as far as a photo goes, it is just lacking a little something extra to really give it that added interest to draw my attention and hold me there. Not really sure what that little extra could be, but I feel that it needs something.