Multi-Scale Turing Patterns

A challenging but really fun and lush one:
http://www.jonathanmccabe.com

https://github.com/rreusser/rreusser.github.io/tree/master/src/src/multiscale-turing-patterns

https://en.wikipedia.org/wiki/Turing_pattern

Good continuation on your basic Reaction-Diffusion system!

Also bonus: Look at the last picture on wikipedia:
Limb development with Reaction Diffusion / Turing Patterns, now that would be cool, add automatic kinematics, and you have some fun :) ... at least cool to know that it´s probably how nature does it, probably easier with normal fractal tree or l-system for kinematics, but still interesting!