Just to explain more of this "approximate amount of fingers": you might have seen this in the wild, imagine the AI starting out with white noise, and then slowly brushing over different parts to add different things the model would expect. There's gonna be areas where the AI expects "heads" and "limbs" and finally "fingers". But it's more like a texture. Those AIs have no direct concept of what the right amounts are for animals and humans. That's why they paint "finger texture" in about the right spot and move on, and of course that's gonna look weird 50% of the time.

There's actually specific techniques modern AIs use to make sure any human or animal has the right amount of limbs and stuff because the AI on it's own would never learn how to do this well otherwise. With text it's really similar btw., although at least you can see the AI nailing the type of font before failing at coherent text. New AIs do a separate pass to recognize specific text in the prompt and then manually add that after the base sampling process iirc.

AIs are so interesting on many levels and the more you learn about them, the more respect you gain for artists and how much work goes into a piece of art. And it also really puts in perspective that (my opinion) AI will never completely replace artists. Our expertise on arts is just too strong so for the foreseeable future AIs will just be a solid helper to every artist at most.