You’ve made a remarkable point when applying set theory to defining art in different forms. The example with the polynomial vs. the simpler sets may be precisely the concept of classical art, music, etc: if one listens to a Beethoven Quartet, this is not the creation that says , “the sky is blue and roses are red, and a blue line is a blue line”. This is a creation that gives us a puzzle to solve —to each listener in their own way. Thus everyone looking at a great piece of classical art finds a different image, philosophy, and vision of it- it transforms with the person beholding it. This is, perhaps, what makes a Carravagio painting or Mozart symohony immortal- eternal metamorphosis…