These look great, I think the general idea of using space is pretty solid. Anyone who's ever tried to draw a tree structure finds it gets busy really quickly w

These look great, I think the general idea of using space is pretty solid. Anyone who's ever tried to draw a tree structure finds it gets busy really quickly with more than a dozen or so leaves, but an actual tree in 3D space can have thousands of leaves yet fits into a reasonable chunk of space. Graphs are similar, if they are connected in 3D rather than 2D (ant nests and termite mounds are decent models).