Thank you for posting these videos. I'm glad that instead of just reporting on what is happening you actually give background and information on why its happening and tips for the starcraft players that are watching it. I look forward to your next video. Thanks a lot.

Hey
Glad to see another individual attempting to get into commentating!
IMHO you have a suitable voice, and you also have the game knowledge required to become an excellent commentator, really the only thing you need to do is continue to improve your delivery.
My advice would be to maybe take a look at how klazart/diggity/moletrap go about their respective delivery-styles. Also work on minimizing "umms" and long moments of silence.
Hope you keep at this!
Good Luck!