While the art style and animation was lackluster (the explosion as an example), I still feel that this was very enjoyable. I finished watching it with a smile on my face, so that's a major point for writer, despite the lack of dialogue. So as far as animation goes, it gets a couple points for not being terrible, and as far as the animation being overall alright, I give it a 3.5!
I don't see you winning NATA this year, but keep it up and I can see you going places.