There are some spots, probably birds, that need to be removed and the photo is too dark.
The photo composition is not onbe that would sell very good. There are hundred of thousands sunset photos in the database.
What is the subject of your photo? What makes it searchable?
The sun itself isn't good - it has turned out as a white blob. It's not good aesthetically. The composition needs improving as well.
Have a read of this from Adobe about how to create better photos: