A while back, I started a thread concerning reversible deformations. Of all the ones I know of, Euclidean to Polar is my favorite. I would run E to P, then run anisotrophic smoothing (fake smudge) on that result and run pen a few times to get some lines. I then reverse the deformation and uprez the result to taste. I then run Circlism algorithm on that layer and use color threshold to make a mask which I use to recolorize the target into dots. I did blend in some of the circlsim mask result to add a bit of contrast and then BRL for the marbles. Been basically doing this process for the marble results using Shapism, but this algorithm exceeds Shapism beyond any words to describe it. 
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