It's not the best teaser. All of the animation is a bit too quick, you can't really follow anything at all. And when the video loops, the music keeps playing and over-lapping, constantly, until it just becomes one jumble of sound. Try to slow it down a bit so people know exactly what you're getting at and try to stop the music for each loop, or put in an ending screen that stops the music anyway. The usual replay button is a good thing.
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