Okay, Dotty, here's your second round. (looks like I didn't smooth it out very good - sorry). I am still not sure I like the cornerstones (in the picture they stand out a lot - doesn't seem as much so in person though). My thinking was to bring some of the dark green from the center outward. If you don't like it, I'll be glad to figure something else out.
I had originally planned on doing a very plain row, but when I was looking through my embroidery designs one night I ran across this design and thought it would work on this beautifully.
Let me know what you think about the cornerstones.