Chairmansteve didn’t ask about theoretical paintings of watermelons that you have imagined though, he asked about Water Lilies by Monet, which is art that famously exists and is liked by many, many real people.

If your point is “all art is propaganda aside from art that exists and must be replaced piece-by-piece with hypothetical counterparts in my head to support this conjecture” you could have just written that. Though “some art is propaganda and some is not” is less profound sounding than “all art is propaganda”