Fireball

    This is created by repeating 7 chunks of the pattern to the  left. There are a few ways to make this using TileDrive.  7o{>3r}<7>{>4r3}xA +7A describes one way to create the pattern above.  The part before xA describes this chunk of the pattern to the left: two core heptagons, with one branch of a single red triangle and another branch with a red square and a triangle.  

    The negative space in the middle attracts my attention. It feels chaotic. Its spiky bits break its more regular heptagonal gear shape. Yet on close inspection, its "spikes" are all the same. Perhaps its having the two sets of triangles slightly different distances from the centre of the fireball that draws my attention playing with my desire of have a uniform spacing.