I have chosen to look at Tentasho (2016), a work of Lia, a generative software artist based in Austria. It is a procedural installation on a touchscreen, and it can either be interactive, where the user touches the screen to drag a path in the application, or it is automatic (and completely generative) when there is no user and the application draws paths itself. These paths are randomly calculated but follow a specific algorithm that creates "tentacle"-like splines coming off the main spline. The drawings end up looking similar to caterpillars, or like some kind of many-legged creatures.
As mentioned in the description on the main website, I too appreciate the minimalist design. There are only three colors, and every image only consists of lines on a white background. I can tell that Lia has a good eye for clean design and aesthetics. It gives the piece a sense of simplicity. Therefore, I would say that it has a moderate amount of effective complexity -- the lines follow a general order, or what seems to be algorithmic "rules," but the paths in total are somewhat disordered. I suppose that the algorithm simultaneously generates the main center line and the smaller spline lines as the path gets larger, but the length limit of the splines gets smaller as the path is drawn.
https://www.liaworks.com/theprojects/tentasho/