I like your eq, I'd just work a little on your legs. What I am doing right not to shape up is riding laps in 2pt with my hands out like airplanes. Squats at the gym also help. This will strengthen your thighs and will help your let stay more still. It's not that you have a problem per se, but I think you could improve there. I like your straight back, but I did notice that you are a little distracting in your half seat. You bounce a little bit. Try moving your hips instead of absorbing shock in your legs. Have your hips follow him back and forth, up and down versus absorbing up and down shock in legs. That gives the illusion of a weak leg, though you very well may be strong. My favorite exercise for that is hula hooping. That's my 2 cents. I love that horse.