I would try practicing your 2 point trotting over cavaletti and trotting small cross rails, with and without stirrups. Remember when jumping, you STAY in your 2 point, the horse comes up to you and then leaves. You do not need to change your position over the fence. Also, be careful not to pinch with your knee over the fence. This creates a pivot point compromising your position, pushing your body ahead and your lower leg back. Your toe should only be turned out at a 45 degree angle with your weight deeply in your heel and you calf on your horse at the girth. Keep in mind when you are in a 2 point, that there should at no time be any space or "air" between you and the saddle. 2 point is not standing in your stirrups, but rather shifting your weight off of your seat bones. Finally, remember to absorb the upward thrust of your horses jump through the angle of your thigh.
Besides jumping ahead, you look really nice! you are releasing you horse very well, looking for your next fence, and look like a very capable rider.
Keep up the good work!