That was great!! you two are going to be awesome. I love your horse. Love the instructor and love your attitude. I think you have just TONS of potential with this horse/instructor. I feel very excited for you.
YOur horse is so sensitve to the leg. Do you know what a gift that is? Never dull him out there and always thank him when he moves off your leg so willingly. With his long legs and long neck, he will be awesome in dressage.
Honestly, go treat yourself to the saddle! It will help you sit up and stay right over his center of gravity, not that you are doing such a poor job in that saddle.
YOu get an A+ from me.