My Tangle Patterns: Tessallation

I won't lie.  This isn't an easy tangle. It took me a lot of practice to get it right. It's best done in a space at least twice as tall as it is wide.  It isn't an exact tessallation as I draw it, but it could be.  I think for zens, it is best to just let it flow.

Ever since I went to an Escher exhibit, I've wanted to do a tangle like this.  That man was a genius!

For variation, if you give the fish big or curved lips, and feather the fins and tails, you can make them look more like a parrot or chicken.