Hi there. You look pretty good. I would agree with Tiny..you would benefit from more impulsion from the rear. Think of riding her back legs, rather than her head/face and push her into the contact, this will also help to keep her off the forehand. Make sure you are keeping elbows at your sides, and steady/supple wrists. I would do many half-halts with her as well...squeezing with your calves, vibrating your reins, and re-balancing. Try to ride from your core and not from your feet...keep her back "up" and encourage a nice round frame. Keep up the great work!
Also, beginning and ending your ride with nice-soft stretchy circles to relax her (and you) are very helpful and start/end each ride with a great peace and balance-in-spirit. :)