Yay!
I've been waiting like, over a year for a sequel to the original, and from what I just saw it was definitely worth the wait. It was on par with the first, but since the first was so perfect anyway I wasn't expecting it could be much better, let alone would.
I notice a lot of the scenes were very familiar to the first, and pretty much the sets followed in the same order (apart from the short bridge seen), but it added to the humour, so I liked that. The banana song in this I felt wasn't as hilarious as the Candy Mountain song from the first, but it was still a funny, random song, so I liked it there nonetheless.
After watching the first, I obviously predicted the ending would result in Charlie being fooled once again, and I actually thought this ending was much, much better than the first.
Other than just the storyline and such, the graphics, animation, and OF COURSE the voice acting added to the brilliance of this sequel. I happened to notice the other two unicorns were more animated in this than they were in the first.
I really, really hope you get round to making a third. Since there's so many open opportunities to get in more great plots and such, I can't see why not. I just hope you're really that epic enough to make another sequel.
:D