Martha's Grave
The face is along the dark edge of the tombstone, in the upper right corner of the edge.
It is like a shadow profile of her face.
This is a 'computer-enhansed' close-up of the face. She is looking away from you, and a little up.
If you don't see it, keep trying.
When you do see it, it is obvious.
Try moving back away from the screen and looking.
