You are having a lot of fun looking at all these aerial comparisons. I use to do a lot of that tyoe of inspection. I have no doubt some level of aerial or “standard map” but unique feature like the one that compares to the centuar tail (image 4) to the road curve in the Cleveland garden, but beyond that there’s nothing but doubt that further image manipulation will yield anything towards narrowing our focus on what would be discoverable to a boots on ground prospector.
Keep up the great work, though. This hunt is still one of the best obsessions Ive ever had and I can only appreciate it when others put up effort. Happy digging!