Just run it and watch. Kind of relaxing. Simple procedural drawing is interesting to me. Making something that is partly random and partly constrained I think can produce things that look "organic". Nature is, it seems, a mix of random events and constrains or influences of natural laws. Tweak variables in the script to see how you can change the effect.
Other ideas. Come up with code to draw a random distribution network that looks like blood vessels or a river system. Keep track of course so it can be retraced and branched in a different place. Perhaps calculate the line width to keep branching until the total width of the branches is equal to the width of the root. Branch and get smaller until down to 1 px then switch color and get larger back up to a max. With the aim of something like arteries and veins.
