Agree with Allison, your lower leg and base of support are admirable. With a little polish, you could go far.
It looks to me from the single photo like you're still pinching a little mane in your fingers. Normally, this is a habit I applaud and encourage; but in your case, it's a little out of synch with your level of ability. I would definitely work on developing a true crest release, with your hands lower and knuckles resting on the muscle of the neck, and then work toward an auto release - it's certainly within your ability.
Once you start working with an intermediate or advanced release, your upper body position will change. You have a lot of angle in your hip in the photo partially because of the exaggerated release. When you start executing an intermediate or advanced release, your hip angle should close in proportion to the horse's effort, not in proportion to how you move your hand and arm.