I wanted to make the optimized tiling look more organic, and I've already played with Voronoi diagrams quite a lot. But this turned out a bit more messy than expected. To preserve the size and shape variations of the rectangles in the Voronoi cells, I ended up using a non-uniformly weighted metric. I guess it counts as a shape metric, using the definition in my Bridges 2020 paper.

As before, there's a roughly uniform tiling with an equal number of cells for comparison.

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