81 boxes arranged in nine groups is nine. The top of each box has design of shapes arranged in a group of nine, which is surrounded by shapes in groups of nine.
I printed a bunch of the aleatoric shape & color recursive images using a color laser printer. Got tired of looking at them so I put them on small gift boxes where, in my opinion, they look better
Just two colors. Level 3 recursion. Using some "pipe" shapes I made the other day. To me it's fascinating how a composition based on principles of symmetry can yield results that aren't entirely symmetrical.