Nice and smooth
I think this is the best one. Its really great to listen to in a smooth way while you plan to conqueror the world and it also don't prevent you from focus when you need it, some music is impossible to listen to while reading, this is just perfect. Its one of the best short loop I ever heard. To be honest the back sound can be louder and the bass could be a little weaker.
I also want to say a bit if you make more of mastermind music, (I don't know where else to say it) is that you have a bit faster and cool music when for example enemy attacks. All four of the music pieces to Mastermind WC were great but they were about all the same with a twist.
But its great that you can make great music as well as flash movies and even games.