Not too shabby.
As I've learned from experience, educational Flash, no matter how much effort (or lack of effort) you put into it, it won't get a great result.
However, I found your movie to be refreshing, fairly remniscient of my attempt at appealing to the kids and teaching them about graphs while just ending up confusing them all and garnering a bad rating and an ever-worsening reputation. Unlike mine, yours was clever, and it had a reason to keep people engaged (namely the music and witty comments). I must say that it takes a lot of effort to diagram how an oil refinery works and to be able to show it within Flash. Nice effort, perhaps one day you'll make the lone educational movie that reaches the top 50. Keep up your efforts, and don't let others discourage you from making these sort of things.