Fantastic yet not quite enough...
Loved most every aspect of it. The oddness of the whole thing was lovely.
However, I preferred the first version, before the walk-back puzzle's walls were heightened. It made me think. Just because part of the public can't solve it first try doesn't mean you should lower the bar.
Another nitpick I have it that it feels incomplete... Perhaps that's just part of its charm, but I feel there may be some ideas that were left out of this piece of art for some arbitrary reason.
The ending is pure genius.
I liked it muchly.