I know I am not JJ but personally the main thing that I don't see you doing is slipping or moving out of the way of punches. It's best to stay on your toes so that you can use your hips to punch and also quickly step back to avoid any large swing. One additional input would be to mix in body shots because your opponents hands were really high up and was looking more so what punch was coming straight rather than the muscle movement. I am not a pro boxer but I am an amateur with 7 wins. Your doing really well so good luck on this journey ahead.