A little bit on the boring side...
The whole thing seems to slow, kinda like a normal animation watched with half the original framerate.
The Voices sounded very off, like some robot did them. You should try to be a little more enthusiastic about it.
It was a bit simple, but thats to be expected if its intended for kids (Buhuu, I am a mage and i'll kill you because im evil) killing the bad guy however, is almost never the solution in kids animation.
Overall it was really boring, but that may be because I'm too old for this kind of story. However you should try to make the next one a little bit more... dynamic.