I attempt these shots all the time, they are TOUGH ! I learned that the best way to get a ghost effect depends on the models clothes. In this case, you should of wore white. Great lighting and detailed sky. (6)
Very nice image. I love night photography. I love the transparent effect of the person on the wagon. I think this image could have been stronger with an exposure that lasted a couple of minutes to get some movement in the stars. But you did a great job!