"Ghost" shots always get extra points from me! That being said though, you might have picked a better backdrop for this shot and that spot in the upper right corner is very distracting... what is it?
some noise reduction, a fiddle with the levels, upping the contrast and lowering the brightness might make this appear a little less undefined and washed out. a lower f number on the aperture might also hide more of the slopdges that appear to be on your lens or sensor.
For me this poses a number of problems, the biggest being the composition you have a ugly division smack back in the middle of your shot. I'm afraid this doesn't work for me.