I agree, they are nice results. But Joseph Beuys is better known for performance art. In his most famous piece, he covered himself in gold foil, and explained art to a dead hare (below). To my mind, it makes little sense to apply this method to his art.
The Audrey Beardly results are a bit better, but if I wanted Beardly-ish drawings I would likely be disappointed. Beardly's lines were very fine... 'filigree', like a spider crawling over the paper, and he almost never made art in colour. Also, a lot of his work was as sexy as hell. NSFW last link (bottom of page) for relatively mild examples.
To my untrained eye, these both look pretty good.
https://static.adityashankar.xyz/gorgeous/hair_flowers_full/...
https://static.adityashankar.xyz/gorgeous/hair_flowers_full/...