Good, but room for improvement.
This flash is good, but if not for the outstanding artwork, I don't think it could stand on its own two feet. The pacing is too slow and the voice acting leaves something to be desired. Throwback sounds like he's doing his best William Shatner impersonation, and I couldn't understand a word the bird thing was saying. I like where the story is going though and I don't know why you had to break it into two parts (the combined filesize was small enough to fit in one submission (unless you hit the frame limit)).
Anyhow, in conclusion, It's a good series, just needs some of the fat cut out of it. I'm sure it'll be a little easier to do in future episodes as you are still trying to introduce characters and plot elements. I'm sorry if this seems too harsh, that's just some of the thoughts I had while watching. Don't get me wrong, I'll watch every episode you throw at us.
Laters.