I've found that when photographing water, one has to choose either to freeze the motion with a very high shutter speed (1/500 second or higher) or create a soft, blurred effect by using a much slower shutter speed (1/30 second or slower). Which choice to make really depends on the subject. In this case, freezing the motion would have created, I think, a very dynamic image. Unfortunately, you used a middle of the road shutter speed, which doesn't give us a very interesting effect.