For some reason, sunsets seem to be a very popular subject (personally I tend to abide by David Goldfarb's "put on the lenscap and enjoy the moment"). With so many sunset photos being taken, it's difficult to come up with something that stands out from the crowd. This particular one kind of lacks a point of interest. The photo is divided 1:1 between a big empty shadow and a rather non-dramatic sky. The sky reflected in the water and the tiny bit of yellow on the horizon liven things up, but for me they are not sufficient to carry the whole image.
Thank you for my first comment, Christine! That was very nice to hear. I noticed you have a beautiful sunset photo also and some very nice flower macros. Love the "abandoned" composition. This website has really motivated me to get out and take more photos. Take care.