Solid blue is superlative example, but I think the amount of creativity in different artworks has a HUGE amount of variance. You can kind of "score" any artwork using and AI Art engine in terms of "what is the minimum number of terms in a prompt that I can use to recreate a substantially similar image (that wasn't a part of the training set)"
Some artists' styles can probably be articulated in no fewer than 600 words. Other artists can probably be articulated in 6. The quantifiable amount of interesting decisions in a piece of art has orders of magnitude of variance.
If someone (manually) copies your style and lets AI train on their works, your 600-word masterpiece could instantly drop to 15-words once (human created non-copyright infringing) derivatives are in the training set.
We are explorers of the frontiers of latent space, and theres going to be all sorts of new things for people to get mad about along the way.