I still like the full shot the best--in the other, more cropped photos, my imagination tends to envision other nearby graves. But in the full shot, I get that sense of isolation, that this lone old grave is out there on the hillside and nature has gone right on growing, all around it.
I like the 3rd crop the best, though perhaps a tad less saturated? Closer to the first in processing.
I agree with the idea of showing enough space to get the idea of isolation across, though the stone is also kind of small and I think it gets a bit too lost in the wider crop.