I have to agree with Sandeha. At this point, the background church and large expanse of wall compete with the headstone for interest. How could you make it more dominant? You could try some low, close shots, or perhaps a telephoto shot that creates compression between the headstone and the background, dropping out all other extraneous elements. It's about looking for the angle and the relative size to create a strong composition.
Here's a similar example where I used a wide angle lens because I was pinched for room behind, but the resulting off-center, full frame view of the grave marker has a strong effect. Telephoto was not appropriate because I would not have been able to isolate this unique marker. I think your solitary marker has similar intrigue, and its tilt gives an interesting, sort of forced perspective. Would you have a chance to go back sometime and try a low or telephoto approach?
