The colors are taken from a picture of a geode.
These images are the result of repeated trig and other functions over the complex plane.
These were drawn with a start and an ending point around a circle with 2 control points also moving around the circle in different patterns to create a set of Bézier curves.
Dragon level 14 nearest neighbor, and two sketches of continuous ellipses on a “rotating” sheet of paper.
Lots of ellipses. Each of these is based on a simulation of an arm drawing ellipses on a rotating sheet of paper.
I was trying to do something else, but ended up with these happy accidents.