There are a few things that immediately strike me as wrong with this shot. The closest headstone, which I'm thinking is the main subject here, is too centred, which has left the ones running out of the right side pretty much drawing a line across the middle of the frame. This in turn has left quite a bit of background on the left side with the headstones there again running out of the middle of the frame, almost giving you a sort of centred horizon.
I think if you had kept the angle you are viewing this at, but moved a little to the right (placing the main subject in the left third) this would have given the shot more depth and a better composition in general.