Good beginning; needs work
You made an ambitious beginning, but you need to do some work.
You had asked for some constructive criticism, so I'll leave you with some comments and ideas.
I work in the corporate world, but many of the core principles apply both to fine art and commercial art.
First off: pacing is everything. I found this animation painfully slow paced, and I think it would make a great improvement if the pacing was just a little more taut. More on this later...
Secondly: Show an establishing shot first, and with every change of point of view.
I noticed other reviewers who complained they couldn't follow what was happening, and I had the same problem. Many of your shots were from extreme points of view. That's okay, but first you have to establish who or what you are looking at. I spent a lot of time looking at reaction shots of eyes. "Who's eyes?" I wondered, "What were they reacting to?"
In plain English, every time you change your setting, or the direction you are looking, or the person or thing you are looking at, you should always start with a wide shot so people can take in what it is they are seeing.
and Thirdly: Audio can make or break a film faster than anything else. The audio quality was poor, and this really detracted from the experience. I have posted elsewhere about how to create good quality audio in Flash, and I won't repeat it here, but there are many resources on the web. Three simple rules for audio: 1) always use a spit guard 2) never pipe a microphone directly into a sound card, and 3) always monitor your sound levels so you don't get peaks, (which cause distortion).
I had mentioned that I would talk briefly about pacing. The best way to address that is by using a tool that will also help address the problems you had with your point of view: a storyboard.
When you are going to build an animation, first write a script, and then plan the animation out on paper. Draw little boxes for each shot, and sketch in little stick men, or whatever to show what you will see in the frame.
Your storyboard should be large enough that you can actually spread it out on a wall or on the floor, and see the whole plan at once.
If you start by actually planning things out on paper, you will notice an immediate improvement in the quality of your finished animations.
As you work on your storyboard, try "acting out" the scenes out loud, (I know this sounds silly, but believe me, it works). As you do this, you will get an idea of how long each shot and each movement should last.
I hope this helps you in your next animation.