Examples of "good" AI art also demonstrate very little. When I hire an artist (when I can afford to), it won't be to create just any good picture, it will be a complete set of specified images in a specified art style. If I just want any good picture, I'll go to one of any number of royalty-free image sites.
As for those two images, the upper one has aspects that I like, but the eyes have the typical AI-generated uncanny valley effect. The bottom image is more interesting, but it's also obviously a collage of existing works. The details all look good because they were all drawn by skilled humans.