If you like playing around with fractals, you'll love playing around with images generated by context free grammars: <a href="https://www.contextfreeart.org" rel="nofollow">https://www.contextfreeart.org</a>
Reminds me of <a href="https://mitpress.mit.edu/books/computational-beauty-nature" rel="nofollow">https://mitpress.mit.edu/books/computational-beauty-nature</a>
Lots of ways of generating fun pictures in A New Kind of Science (<a href="https://www.wolframscience.com/nks/" rel="nofollow">https://www.wolframscience.com/nks/</a>) as well.