I'm gonna be honest here, I personally didn't really like this preview. First things first, the microphone used with the voice acting bit isn't that good. I would suggest getting a new one. Second, why the Taco? Third thing, when you drew the mouths and synced them with the audio, the mouth itself doesn't match the style you used for the characters outlines/everything else. Forth thing, this is REALLY stereotypical. I mean, from what I see the plot is like this. "There is a school on earth that only excepts the most talented people in the world and then those students have to then save the world from whatever the heck is attacking the earth." That trope has been used MANY times. For an example, there is an anime out there called "Danganronpa", it used the same stereotype and adds on to it with a murder mystery feel to it. This is just the same trope/stereotype that has been used many times before. Fifth thing, the taco itself is just a cropped out PNG with eyes and a mouth attached to it. Sixth thing, the animation sucks and the posing is pretty bad and abnormal in some ways. Overall, this has got to be one of the WORST animation previews I have ever seen. It's stereotypical, it doesn't look or sound pleasant, and WHY THE TACO?! Seriously! But anyways, I hope you can understand that this is also a review and I'm just pointing out the flaws that I saw in this. Who know, maybe you could prove me wrong, but my point stands and I still do not like this or think it will work.