flash animation

this semester (i'm a college student) i'm taking a motion graphic design class, and one of our assignments was to animate any vector-based mechanical object--which we would create, of course--and show it interacting with its name and definition. this is quite short, but is probably a lot more complex than anything i've created before. feedback would be greatly appreciated.

http://www.deviantar.../view/25682866/

you used some nice effects there! but may I ask what is the purpose of this animation? just practice?

you used some nice effects there! but may I ask what is the purpose of this animation? just practice?

it was an assignment for my motion graphic design class. (i'm a junior in college.) thanks for the feedback!