Exploring Celtic's family fractal

[nmmmnu]

Hi

first I generated Celtic, perpendicular Celtic and perpendicular buffalo, I watched but see anything It looks like such a boring fractal.

However if you lower the iterations to 32 or 64, you began to see its beauty. Following images are in perpendicular Celtic, but many exists in other two:

Perpendicular Celtic - Alien Hive by Nikolay Mihaylov, on Flickr

Perpendicular Celtic - Alien Hive by Nikolay Mihaylov, on Flickr

Perpendicular Celtic - Alien Hive by Nikolay Mihaylov, on Flickr

Perpendicular Celtic - Crown by Nikolay Mihaylov, on Flickr

Iterations are just 64.
Colors are what I call cyclic - e.g. 32 shades black to white, then 32 shades white to black, then start over.