Transitions:

In "irregular polygons", I noted that I liked the way the pattern transitioned from a predictable hex-packing to something that was almost square.  Here I have forced it to start that way and allowed the shapes of the cells in between to work themselves out.  I also added some cell edge variability to give it morphing tessellation feel.  I really like the transition from the bottom middle to the bottom right.  I will have to use that again someday.
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