Importence?
You say this film concludes a three part series? As far as I know it didn't up the ante or answer any questions at all, leaving you with even more questions than before and an empty feeling inside. This really isn't the time to be moving onto other things, not when Shroud has a bitter vendetta against the (very poorly explained) box boy.
I think your animation and style are really something special, your talent truly speaks for itself but you must dedicate yourself to writing a story before you animate, otherwise you'll wind up with a "Brackenwood" on which, animation is entirely reliant.
I'll tell you what, I'm a semi-porfessional writer with a few novels and screenplays under my belt and I've always wanted to write a flash movie; if you would consider it, I could write a Shroud vignette for you, all I'd ask in return is a partial credit of the finished film.
Sincerely,
CHIKUNHED