Pic taken summer of 2010 in St. Augustine, FL, in front of the Tolomato cemetery. Natural explanations?

I had something like this happen to me when I took a picturee with my digital camera. Sometimes it will happen if your flash is off and the camera moves a little. I do believe in ghosts, so I suggest seeing if perhaps someone who is a digital photography expert such as a teacher who teaches photography at a college level could help you, they're trained for this sort of thing.