Very short, but super cool concept that adheres to the theme. Can definitely see how this would quickly go out of scope (especially in 3D) so good job having a playable demo.
As others mentioned, the scene definitely needs other angles or at least more variety. It also would've been nice to know more about who I'm jousting, either through some description text or dialogue before the joust begins. Otherwise all the jousts might start to feel very similar to each other. Good work overall!