My code is an absolute mess right now, but here’s a fun plot showing everyone in my family GEDCOM. With so many people, it’s hard to visualize all of them at once, and most software provides one or the other of a descendant tree or an ancestor tree.
Colors on this plot show whether a person is a terminal ancestor (no parents) or terminal descendant (no children). You can also tell that I don’t have the graph (connections between people) set up properly, because I don’t have that many unrelated individuals in this GEDCOM (at least, I shouldn’t). Overall I think this is a good start and eventually I can end up with a poster.