The video looks great. One minor concern: it may be because you have spliced several segments together, but it sounds like a couple of the audio samples may be a bit repetitive, particularly "Another new word". You might consider having an alternate audio file or two for that, or maybe consider how often it is necessary to play it. I'm being rather nitpicky here, but better to consider somthing like that now.
Well, you are right. We got six alternatives for the "new word" audio sample, but the game is just in the balancing/polishing phase and so far it looks, that we will probably lower the number of these voiceovers.