Isn't "WIP final" actually just "final"?
In the armor plating, the right armor is by far my preference, but I can't really make out the left version's details. Those little nubs look great when they land on a seam because they look like they tie plates together. When not on a seam they just look odd. The middle one looks like brickwork and is jarringly out of place to my eye.
I assume that final image is just the raw texture values being depicted. I can't make much of them.
I also thought about that, but realized that hexagons are already pretty heavily used in science fiction games.
Perhaps some kind of hybrid would make for an interesting pattern. For example, large circular plates with some funky set of irregular plates filling the spaces in between. The idea is that a circular plate has some active field effect going for it. The field radiates through the material from a central point, and the plates are designed to get the best bang for the buck. So the plate pattern would be a reflection of the underlying fictional technology.