Big improvement over the last one!
Nice variety, you're really getting there now!
It was good to hear all those different, original voices, and I liked them. Though it seems to me like you're holding yourself back a little. Why not try recording when your room/house is quiet or you're home alone and really go all out on it? Haha, of course, I don't mean just shouting into the mic, but talking and envisioning yourself like you're truly in your character's situation and just letting the emotions flow with the voice.
Other than that, that's pretty much it. If you're planning on recording yet another demo reel to top this one, I suggest doing it near the end of the year, or at the beginning of next year, then compare it to this one and see how much you've improved. But I have to say, your leap between this one and your last one was impressive.
Keep on keeping on!