I loved the animation. And the characters. And the concept.
But the voice acting needs improvement. Cindy sounded kind of wooden, especially in the beginning (Literally sounded like a robot in the first sentence she said, if you noticed). Voo, while less so, had so many filters over his voice I could barely understand what he was saying. I get that you're trying to make him sound more "demonic", but you need to tone it down a bit, or at least find a way to make the voice clearer over all the editing. The lip sync wasn't bad, but it wasn't good either.
Again, I loved the whole thing, but the sound degrades your work, and it doesn't deserve that.
I will be following your work. (While checking the follow button I realized what your account name is. I'm not sure if the irony is on you or me. Either way, now I'm just doubting my whole review. Damn.)