The Arc Phase Variations, No. III

Back to proper circles this time, and experimenting with a much more complex overall structure - the choice and positioning of certain elements is determined by incrementing mathematical sequences, although the z-order interactions are arguably a bit more linear than in the previous picture.  Still got no idea what I'm drawing here; I'll just do the ink-on-paper stuff and leave the interpretation of my circles to others...

Began this one in late 2011, and completed in early 2012.  Again, black Sharpie on A2 220gsm Winsor & Newton cartridge paper.