I can see why people hate Eyes Wide Shut. The plot is vague, the characters mostly unlikeable, and there's almost no resolution. That disregard for a traditional story arc is what makes me appreciate the movie.
Eyes works because it doesn't seem to care about established rules of cinema. I would have liked some things explained and a more satisfying final. Kubrick didn't seem interested in that, and I respect the decision.
I think Eyes would make a great triple feature with Lynch's Mullholland Drive and Lost Highway. Here we have movies that I don't always understand, but I enjoy them because Lynch and Kubrick are doing new, odd things with film.
These movies are like a Kandinsky painting. You can't really explain them fully. But does every work or art need an explanation?
I liked Mullholland Drive and Lost Highway way better. To use your painting metaphor, it was clear that those were surrealist movies. I left being o.k. with being confused, because they were fun abstract and psychedelic rides. EWS had a premise of a mystery that had no answer. They threw a bunch of possibilities out there, or clues, and most were unresolved. Everything that happened in EWS, even the crazy rich people masked orgy, was well within belief as something that happens in real life. There really wasn't anything over the top abstract about it to me. It just pissed me off when I sat there for a couple of hours trying to piece together a mystery with no answer. If it was meant to be a subconcious surrealist movie, he missed the mark big time. It wasn't crazy enough.