Ok so I just recently bought this mare. She's 14.3 hh, 14 yrs and she's a quarter horse. Can you crit. Her and my riding. I know that my heals are up some of the times and I relize I need to work on that and she needs to gain some more muscle (she hasn't been ridden in like a year) So yea.... go ahead but be nice.
Also you will want to look up and push your chest out more, you're noticeably slouching in the saddle.
However, you look very calm and quiet in the saddle and you stay with your horses movement nicely, you'll just improve your riding when you get a bit straighter through your whole back and you stretch through the back of your calf to your ankles.