Started this fractal artwork as "quick late night fractal" but soon turned into hours long. Went through several different colorings, landed on few that "this is it" but kept going. Added blurs, removed blurs, adjusted blurs, changed coloring, changed it again, changes bipolar rotation and scale, adjusts colors and blurs more, then finally tweaked coloring. 30 minutes turned into more than 2 hours in middle of night. Rendered this overnight with AA4, should be smooth and crisp.