While I don't like these kinds of announcement videos, it had a couple of good moments. I liked the ending and the quick sight gags. You should look at how to use the animation API so we can pause and rewind to catch all of the quick gags.
In short, I want to see what you make in the future using this same style. Maybe make a few stock backgrounds. All too often even "good" animation has no background. Even solid colors would be an upgrade.
Of course the voice is the real star here. Even the microphone clipping is fine for this kind of "terrible" animation.