Hey, pretty good! I wonder if you could use Kinemote to lower the volume when you raise your hand. I'm not sure if it works when you are sitting down.
If you are comfortable, please make the video public so maybe some new people will discover it. If you prefer to keep it private that's OK too though. Thanks for taking the time to make it! It's hard to think of all the possible commands when you are making a demo right? I know all about that...