A Different Kind of Blackwork

Reading this article introduced me to the terrible and beautiful lightning tree:
Which reminded me of fractals:
Which led me to space-filling curves, like a dragon curve:

and the Moore curve:

Perfect for blackwork, no?

A Peano curve:

A Hilbert curve:
What's really neat is the back of this square looks like an earlier iteration of the curve:

I have to do more of this.