You look like you are really well suited to each other and make a lovely pair! Fingers crossed for the vetting tomorrow!
As for CC, you ride really nicely and he looks forward going and fun. If you can try to think of sitting up a bit, think of pushing your boobs out as if you want to show off and this may help you be more balanced with your sitting trot in transitions. For him, try to keep him on circles so that he accepts the inside leg more and as he becomes more willing to bend he should also become rounder in his outline.