I think you're a nice rider with a nice horse! The horse looked relaxed, steady and fairly supple. Your position was very nice and your hands were quiet. (Do keep your head up though!). The horse seemed a bit heavy on the forehand at the canter and lacked a bit of hind end engagement and impulsion at the canter (looked like he was dragging his hind end a bit and I almost detected a bit of stiffness in his hind right...can you feel anything there?). Try some half-halts at the canter to see if you can get him a bit more collected and engaged at the canter.
I'd like to see how he goes in the opposite direction and on a straight line (down a long side or across a diagonal).
But nice job overall! Have fun!