Dave, I think this is an interesting image but there are a couple of things that IMHO would improve it.
1. The bottom left side of the image seems to be a little too dark ---Perhaps some type of reflector might help---even a piece of tin-foil wraped around a piece of cardboard may suit this purpose.
2. The image would look better if it were sharper---but my guess is this is a function of the forums and not the image itself. I think most have found that to get a sharp image on the forum, you have to upload via a thirdparty site like Zenfolio or Flicker.
Hope this helps