I think this song is the best of the bunch.
A few minor thoughts:
I'm pretty sure that the chorus is "my life is open" after repeated listens, not "my life is opera." It makes more sense, lyrically -- he is the object of art. But I could be wrong; it's hard to tell on YouTube.
I also disagree that the ending of the song doesn't work. I think the pills and take my hand bit is a nice coda. It appears that the reason the musicians just seem to go on a bit is that they played an extra measure, and should have ended when Moz said "Nobody knows." Which is understandable on the first live airing.
Anyhow, a great song!