Man, he is a gorgeous horse! Love the chrome. You've got him lovely and soft, and I adore how you ride. But I agree with EponaLynn, I'd probably ride with spurs. I'm pretty sure you can use them in dressage. But honestly, congratulations! He looks amazing, you look amazing, and I commend you on getting him so soft. It's also nice that you're getting your flatwork all sorted for when you finally actually event!
EDIT: Didn't realize there were two videos. Test C he was going a lot more forward with the right energy, but he was less soft. He clearly wasn't sure about the judges! Was that one earlier in the day or something? (: