I’m a fan of code aided design and really appreciate the effort and creativity in what you have done here. without an extensive background in geometry, I sometimes wonder how one could find neat concepts like the Lissajous curves that have a near direct applicability to graphic design ?
The three basic butters would be "doux" (unsalted), "demi-sel" and "salé" although the latter does seem to be harder to find in your run-of-the-mill markets and epiceries outside of Brittany.
Very fun to see this here ! I've been to Bordier's shop in St Malo, they do make lovely butter. If you know a bit about France and Brittany, you'll know that "les bretons" are very much fond of their butter. Check out how they make the famous kouign amann and if you get a chance, do have a taste if the quantities of sugar and butter don't put you off ;-)
You might find this helpful : https://bezier.method.ac/ although I wouldn’t spend too much time on it. Rather, you should try to find some YouTube videos that show you how to produce the general style of art you are specifically trying to create. You might find some more advanced tips and tricks other than the quite narrow drag and click techniques this tool will help you with.