Nice horse... you two look cute together :)
-don't pinch your knees
-put your heels a bit more down
-center your half seat and stretch up, remember the horse will close your hip angle for you, you don't have to do it yourself
-when jumping smaller, remember to get you bum out of the saddle :)
-great job looking ahead while jumping! That's a great skill to have!
-nice release too
-have fun! Lol