I've tried having A.I. generate a fungus filled cityscape before... I can attest. It is not ready to generate nonhumans...
-------------passing by, stealing it, dont mind me----------------- (let a post-it saying : Thank you for the image)
ps : the AI didnt fail, they simply send the product to the wrong person. Or in fact, tried to contact me but 3 rules of robotics stopped it.
When I want something beautiful, it gives me abominations. But when I want abominations, it sent me something dropdead beautiful.