While setting up this blog, I asked Katherine what it was more specifically called, and she wrote
"The photo was taken in Wall's Quarry (or Brimscombe, which covers the larger area) and is looking towards Swells Hill. It counts as being Stroud - I guess I would always just say "Stroud" if asked where I live, and only if the person was familiar with the area would I start getting more specific."
The brighter, fuller version is here (click to enlarge):
The design along the bottom was on top of someone's roof, down the steep hill below the road. Katherine's house was up just as steep a hill on the other side of the road. It was a beautiful place and I'm glad I got to be there.