Fix it!
It isn't that bad, but these are the things I think you should improve:
-Spend some more time on animation - you have good textures, but it would be great if you used them for a better animation
-Fix your subtitles - find someone that knows english and ask him to help you with this.
-Add some better sounds
I also don't think this movie is "Appropriate for all audiences" (like you are saying) because there is blood, some violence and some course language in it.