So you are riding her one handed in a snaffle now?
She is really cute and you sit her so very well. The only thing I can see is that she tosses her head around and turns counterbent sometimes. I guess that was here wanting to go back to the "girls". I saw you went to two hands to support her when needed which was nice.
I wonder if when circleing, when she starts to counterbend, if you could slow her down a little bit with your seat and really get one or two deep steps under with the inside hind, and feel her round out with her outside body (get longer on the outisde). Slowing her down and riding her for a bit seated, feeling each step. Then when you feel her respond, give her the rein and let her "coast"
Theres a faint feeling that she is just rushing through everything.