This is good
As far as art and animation goes, this was decent, but I'm sure you'll improve with practice.
It might disappoint you to know that, despite your effort to try something completely original, such random animations actually have a sort of genre, a collection on newgrounds. I believe it is called "experimental". There are quite a few like yours, random, meaningless.
Perhaps you're taking originality in a very literal sense. The color white, it's been used before. Using it again would be unoriginal. That, as I see it, is faulty logic.
An original plot would be something new, perhaps the basic structure of the plot has been used before, but the skin and the bells and whistles around it are new, of your own creation.
As I see it, this flash is as original as any other flash with non copyright characters. Or perhaps a bit more original. But the thing is, originality doesn't always equal a good flash. I could walk backwards in the street, in hopes of being unique. But it's impractical, and stupid. I could develop a new creation that helps people in an effort of being unique, and that would make me unique.
People are finding more and more new original concepts in games. But if you rip the game apart, you'd find that all games are very similar; you press on buttons to play, press on the correct buttons to win, press on the wrong buttons and you lose. But that's not how people look at it. I guess it's merely relative.
But in conclusion, I commend you on your efforts of trying to be original, and keep practicing.