Clever!
This is the first animation of this sort that I've seen here on NG, and it was very good -- but may I offer some advice?
You chose some pretty good music, but let's examine that for a second... Back in the 20s, silent films were accompanied by music that matched what was happening to the characters (Nowdays, that's called 'Mickey Mousing' -- Google the term for more info). Dangerous parts had thrilling music, romantic scenes had sweet melodies, etc.
I think if you'd animated your cartoon to match that fact, it would have been much, much better!
A good example of 'Mickey Mousing' would be the NG animation called 'Shoo Fly.'
And -- If you ever make another one of these and match your music to your 'toon, I wouldn't be suprised if it got a score of 4.5 or better! =)