Hi Terri,
Movement, particularly induced movement is an important creative tool within photography but like anything, it needs to be used in the appropriate situations.
In this photograph you have used a slow shutter speed of 1/6th of a second to try and establish a softness to the photograph. What lets this photo down though, is that despite trying to imply softness, everything else about the image is not soft.
The light is a rather bland mid daylight and there is almost and expectation that this is an image that you should have got sharp. Then there is the vertical composition… you have ended up with a lot of sky and water in which it is difficult to be made aware of the movement. (In terms of softness… a landscape or horizontal composition is often a gentler option). Then there is the central area of the picture… that rather heavy, dark looking pier.
I would suggest that in this instance the image has not worked. What I would be inclined to do though is to go to this location again but this time go up onto the jetty and try making slow shutter speed pics amongst the people. All those different colours they are wearing combined with some movement will tell a much more interesting and colourful image.
Keep working this technique but keep looking for the appropriate situations too.
Cheers,
Anthony