Very nice, but keep working!
This was an all-round good animation. Pleasing visuals, good voicework and a storyline that was constructed well enough to keep me watching. Good fun. I normally focus on the positive things when I review good work, but I have to say: You were too reliant on tweening!
It felt like the characters were swaying themselves and their limbs around so much for small movements at times, and I don't just mean the drunkard. I've seen this in many animations which strongly rely on tweens. I've gotten used to it, but with your obvious talents I felt you could've provided some of the more realistic motions the tweens often failed to produce for your characters.
Adding some frame-by-frame touches to your animation would really help to kick things up a notch. I also suggest you keep working with ActionScript to benefit the next installment. There needs to be some sort of scene selection feature. Optional subtitles wouldn't be a bad idea either. Oh, and perhaps a tweak on dimension with the scenery in some places.
Other than that, you have a very nice thing going here. Sorry to focus so much on the whole tweening thing, but I think it's important that you consider varying your techniques. I really think you can go the distance, that's all. It'll be interesting to see how the second episode turns out in any case.