Absolutely un-fricken' believable.
I take my hat off to you. On Newgrounds that's quite possibly the best animation I've seen so far. If you were to see it on TV a person would definatly stay to watch more if they were channel surfing.
So it had everything in it. Wait....the sound, the sound, the sound. If you and some guys came up with the audio they are really some guys!
The story line was great with the little black men forming a giant shadow, for that reason it reminds me of the series Redwall. So I think you could probably take it far with that basic principle.