Crop Circles and the Pinterest Algorithm

Crop circles that pInterest algorithm showed me, based on my interest in dots (making my previous post). Image A and B have dots getting bigger at first, then they get smaller as they curl and disappear into the center portal. At 90 degrees to the main path of dots, there are outflows. These are like the little flames on image C's "vine" (flux tube?) and image D has little eddy curls.

Image E is what set in motion this investigation, noticing the expanding outflow on the left half, then the wavy shrinking flow curling back to the origin point at the top, on the right half of the image. I prefer the ancient versions over the crop circles, because the size of the eddy outflows on the convex side should be bigger than on the concave side, because pressures are different, but A and B show the same sizes, which seem inaccurate.