I love that pic also. One night I was watching Eastmans TV show and they had a great segment on "after the kill" photos. They talked about background, line of sight, etc. One little hint they gave that stuck with me was preparing the animal for the photo ie: cleaning it up, and position. Your picture looks sooo natural and the lighting was way cool. I would have loved to seen the pic if his head would have been propped up.
I just purchased a new Nikon DSLR and can't wait to get in the woods to use it. Thanks for sharing.