I'm surprised that you aren't in more cartoons, Druox. Before Hippolyta, you were a metal musician, and a popular one at that. With that out of the way...
The voices, while not varied enough, are believeable to get the point across. Of course, those samples may be three voices, but for what you were going for, any more would ruin it. However, don't get pissed if you get overlooked in the voice actor category; for every good cartoon/game/song/etc. that gets overlooked, there are hundreds of shitty ones that obviously get ignored.
What I do like:
-Good vocal performances
-Decent voice selection
What I didn't like:
-The voice range seems limited, but then again, I could be wrong.
Overall: Druox the Shredder, here's a nine out of ten, and maybe I could have you in one of my own productions in the future.
Niec voice acting.
Nice acting, good voice transitions.
Please contact me if you would like to use this in a project. We can discuss the details.