Hey you made it over 5 for your first challenge, not too shabby. I still like it centered, even though others didn't. But it would be cool to try some of the suggestions made here and post them in your gallery.
And see I TOLD you it was Tubaman no 10 involved. :)
This could have been a really terrific image if the focus was better. Your dof was probably too shallow, and you needed to crop more of the left and right out to get a nice shot. I think that a portrait rotation would have also made the image better.