Here are some of my favourite open source abstract artwork generated with Perlin noise.

There are 17 piece of art work each one generated in a unique way.
Line thickness, friction, force and draw time generate beautiful and unique abstract artwork.

Created with Javascript

Whilst the original work is not my own, the artists allow use of the arts from https://www.pexels.com/search/abstract/ - I have also donated to the original artist via the website.

The true beauty is seeing how perlin noise interprets each piece and creates something unique.