At first glance, I agreed with Kevin, and I would still have to say lens flare in regard to the orbs. However, although I don't see all the things Starlou found in the pics, the first one she has the close up of, the tombstone, I actually see two or three faces. The larger, is partially formed, a young woman or young girl, it is pretty indistinct.
Now, to the center right of the tombstone, I see a VERY distinct figure of a young woman in late 18th century/ early to mid 19th century clothing (upper torso only). The hair appears dark, parted in the center and over her ears, as was the style of the period. She appears to be looking slightly up. The image almost reminds me of a cameo.
Whether it is a random image, or something paranormal, I couldn't tell you, but it is interesting.