Heh. The question is what am I NOT working on ;)
Well... lets start with my handsome pony. We have recently begun to work on turns on the haunches as our "new" thing. We trot a lot, so that isn't really anything new, however, I've succeeded in slowing his big, high-stepping trot to something more "sitable"... now, I need to work on getting him to move out again. We've got to find a happy-medium in there somewhere, and I'm quite certain that a crop is going to make all the difference in the world ;)
Myself? I need a better seat and more "loose" arms. I have these stumpy little arms that, when I watch videos of myself riding, appear locked in position. I swear, when I'm riding I'm making a conscious effort (that I FEEL!) to open my shoulder/elbow and allow it to swing forward freely, following my horse's motion. I look at myself riding, and I don't see it. It's like I completely imagined the whole thing while I was riding and it NEVER happened. I've also found myself pitching forward the more I trot. I need to develop a better core, which will help my seat tremendously. I start out okay usually... but as I post along, my lower back becomes fatigued and my whole body pitches forward :P Blech.
I know my horse would be such a spectacular Dressage pony if he had my trainer or one of her assistants as his rider - his willingness and their expertise would be a dream. Ahhh... alas, I have much greatness that I aspire to ;) Together, we are learning. Sometimes, it is 3 steps forward two steps back, then out of the blue we have a 3 step forward, no step backward day, and those are the days I strive for!