Different...neither really worse nor really better
First of all, its great to see again another Bitey movie and that you didnt want to "abandon" us (as we aint abandoning you), you make alot of people happy and make us dream even if only for some minutes, so... yeah, thanks.
2nd I just read Darkaxl's comment and he's kinda right yet kinda wrong. I agree that the music overpowered the narration at some points, sound is indeed sometimes more important than the animation and you might really have been kinda rushed (of course I dont know it but if I think how long you had for your other bitey's it IS a difference in time and that most times has a influence).I dont think though that the narration idea is necessarily a bad idea, it's just...different. Sure of course you could say "It's not the same anymore" or "It tells too much, gets the mysticism out of the tales" etc etc, yet don't we strive to know about everything in a story from a book? Don't we want to know the past, present and future, the how, why, when and what? how the story ends? (of course we want that the story never ends :P) As said its neither good or bad, it got its positive and negative sides. The originals or the changes? Do we want to stay in the dark, enigmatic unknown or step forward, discover, learn and understand why things are the way they are? So paradox...so I guess in the end it's everyone's individual oppinion.
I personally somewhat liked the narration, it leaves one in suspense, yet I wouldnt have minded at all if there wasnt any. I must say though, IF there's gotta be speeches then only narrations and NOT more. It would really be crap now if Bitey started speaking x)
I dont think Emma made it badly, sure could have been better, more...elvish and not so harsh, dry, but she still hit the needle pretty well on the head, I've heard narrations a thousand times worse (without exaggeration) also the choice of the words is pretty good aswell.
The animations are as always mesmerizing, beautiful and just fantastic.
Same goes to the music, if not even better, more....enchanting, emotionally/fantastically captivating.
Heck, this might be my longest review for anything in my life, so much about quietness. Yet again something as special as a Bitey movie deserves the upmost attention.
So in summary:
Animation: Awesome
Music: Wonderful
Animation-sound harmony: Pretty ok/good
Originality/Idea: You keep surprising us
Narration: coin-flip
More?: DEFINETIVELY! *.*