I photographed this angel just a couple of days ago. What intrigues me is that she forms part of the gravestone and is not a separate, standing figure. Her expression is one of serenity - a refreshing change from the usual weeping, mourning angels more commonly seen.
In terms of of photographing headstones and especially something like this angel, there an important thing to remember. Move around and vary the angle of your shot - it makes a real difference. Here are just a few examples to show what can be achieved. I have not included the standard profile photograph or the close-ups of the inscription, the latter to save having to write down the details - as long as the inscription is legible and . . . you are confident of your photographic competence. What you don't want to have happen is that you travel 50 miles to visit the cemetery and then get back to find everything is badly exposed! Of course, everything is so much better now - with a digital camera, you can check if the photo came out straight away.
Good luck and . . . keep making a record of history!