I'm by far, no legal expert. However from what I've heard, this seems to be an example of intellectual property theft.
I find it ironic hypocrisy, that at a time that Elon Musk and Tesla is essentially accusing a former employee for allegedly stealing Tesla data and intellectual property; that Elon Musk and Tesla allegedly stole an artist's art and mass reproduced it for corporate promotional use.
It's hard to believe that some people are so morally bankrupt that they admire Tesla and Elon Musk.
Nikola Tesla is spinning in his grave that his name is being tainted with such evil.