Gotta say that I was impressed, Now I'm not a voice actor myself (by any means) however, it's obvious that you've got talented. Now the weakest performance, was the clip from 00:33 - 00:39 in my opinion it sounded a bit too forced, maybe you intended it that way for what you were making though. It wasn't bad by any means, just under par when compared to the other voices, they sound amazing. Anyway that was my two cents, keep at it....
Please contact me if you would like to use this in a project. We can discuss the details.