The thought process put into this final iteration was to see how a simple shape could be varied in the simplest way and achieve a nice look.
A simple square module was arrayed out equally on either axis creating a 7×7 grid. The modules were then extruded on the z axis. The length of the extrusion was based upon the distance the module was from a set attractor curve.
The attractor curve is an ellipse shape centralized in the field of modules, and then rotated at 45 degrees. Centralizing the curve created a nice sense of symmetry as well as a nice visible gradient over the field.