Aww pewds why couldn't you just record/edit a real video and send it to them? plenty of usable content without you looking silly talking over a game you're not playing and someone didn't realize that the blue background is supposed to be keyed...
pewds that shotgun mic is way too close to your face. try moving it a bit farther away. You might even be able to keep your mic completely out of the frame now. The Definitive Guide to Operating a Boom Mic Like a Pro or Shotgun Microphones | explora might be helpful.