If I ask Midjourney for an image in the style of a particular artist, some people consider this obvious and outright theft, but if you chat to the specialists at Christie’s or Sotheby’s, or wander the galleries of lower Manhattan or Mayfair, most people there will not only disagree but be perplexed by the premise - if you make an image ‘in the style of’ Cindy Sherman, you haven’t stolen from her and no-one who values Cindy Sherman will consider your work a substitute (except in the Richard Prince sense).