See it in the browser here.
The shapes refer rather clumsily to the work of Karel Martens -- in particular, these configurations from the cover of OASE 65:
In this version, dead cells are crosses, just-born cells are crosses with circles, and reborn cells are crosses with circles and four rotated squares. SVG transparency is used to mimic over-printing in the originals. And maybe the action of layering can correspond to something poetic in the cycle of life?