Not sure if it would be possible based on the location, but if you could adjust the angle so there is more of a gap between the ferry and the pier. They are both at roughly the same line in the photo and I think it could be more powerful if they were different. Maybe if you were closer to the pier so it came from the bottom corner at a diagonal to the ship?
Also, rule of thirds would be your friend here. Everything is right dead center which is a little boring.