The last image is a screenshot made from a 3D print simulation in Prusa3D. It reminds me of the work of a belgian illustrator, Elzo Durt.
https://duckduckgo.com/?q=elzo+durt&t=ffab&atb=v108-1&iax=images&ia=images
@focus404 Do you have a learning resource that you like?
@rupert hey, mainly this cheatsheet https://www.openscad.org/cheatsheet/index.html