It is a nice sunset over the ocean but it could be better if the sun and the horizon were not so centered. Rule of thirds can help. An object of interest like some rocks or a person can also make sunset pictures more interesting. Most of us have seen and taken pictures of sunsets. Look for ways to make them different or give us something else to look at too. Make us want to look at the picture longer than a second or two.
Placing the directly dead center in the frame doesn't do much to enhance the compostion of this photo. I feel this would have been better served off-center and horizontal.