Eh.
I've got no qualms with the animation or sound. However, when you say the narrator is supposed to "be an unreliable narrator masquerading as a reliable narrator," I immediately think this is a cop-out. The narrator's argument is faulty and easily refutable; did you just say it was intentional as an artistic way of covering your amateur assessment of how high art is determined? That's what it seems like to me. There is no biting sarcasm or satire here to justify the narrator is being erroneous on purpose; it shouldn't be so vague that you would need to tell the audience prior to the flash.