Mixed Feelings
For one thing, the animation was definitely outstanding and smooth. The fire looked nice, and I know from experience that's a tricky thing to capture just right. Everything flowed nicely, and there was no sketchy or jumpy feel to it at all. Very exceptional use of frame by frame animation, without a doubt.
What really kills me on this is the lack of detail. Making every character a silhouette with just solid shapes for eyes may be what some consider a style, but to me, it just seems like an easy way out to dodge having to give characters shading, detail, and depth, and make them look like actual people. Instead they seemed more like black blobs on the screen. There was very little in the ways of facial expressions, but at least the body language did make it clear what was being said and done. Still, when you have your characters looking like that, I can't help but say, animating them really wouldn't be too hard. Meanwhile, the backgrounds weren't all that detailed either, and seemed more like cardboard cutouts. I'm not surprised this only took you a week.
Storyline, its been done before (maybe not exactly in that format), and I can catch a whiff of Eragon and the like in there. What I don't like is the rather abrupt ending. I was expecting the dragon to save and defend the town without military orders. The part where he saves the father and daughter is good, cliché, but it's well captured anyway and I have no problems with it. But then he flies off in the middle of combat, and... it just ends. I would have loved to see an ending where the dragon proves to the army that its better to fight with spirit and courage than be forced under military duress, and that's what really wins in the end. Unfortunately, that scene never took place.
As far as the music goes, it fits in some places, but not so much in others. I'd have a tough time suggesting an alternative track though, since the movie switches moods, scenes, and settings on the turn of a dime without any forewarning.
Don't get me wrong, it's a good movie and its well done with the style you used, but I see a lot of areas for improvement and further development. Why go simple when you can go above and beyond? I know you're capable of it.