I decided to try an HDR technique to add more “dynamic range” (the ratio of light to dark) to the photo. I used a program called Topaz Studio and applied one of their filters to add the increased depth I was looking for. (Have you test driven Topaz Studio yet?)
Then I tried another filter – the field rendered as a drawing!
Back in GIMP (my standard editing program) I cropped the photo into a square, and applied the Darla Amazing Circle filter.