I'm a fairly beginner rider, walk/trot. I haven't seen my instructor since November, and I feel that my position has suffered (for instance, my toes stick out and I think my upper body is too far forward esp. Over poles). I ride hunter-jumper with my instructor and the horse I'm on is a former hunter. He's 20 and yes, he's overweight (we're working on it, he's lost 30lbs already). Does he look happy/comfortable? He's had some issues with his left hind up high. I'm intentionally riding him on a loose rein. Do my hands move around too much?