Your circles are from point to point. E 20 meter circle, you start turning at E. Your circles should be from point to point to point to point. Use your letters, and you don't go into your corners for circles.
Your diagonals start on the letter. So if you were to go M X K - you start turning at M. Outside aids. When you make your right turn at C, get into your corner, then start turning at M.
Your 20 meter circle at A - start your circle at A. Do not go into your corners. Bend your horse around your inside leg, support outside rein, and see just the corner of your horses inside eye. You touch the arena wall between F and B, you touch X and then you touch the arena wall between E and K and then A again.
The Judge is looking for a happy team. Happy horse, forward, under himself, soft. Impulsion, rhythm, engagement, opened up and moving under himself. Lofty. Good position in the rider, working together with the horse.
Ride each movement. You flub up one movement, no worries - just move onto the next.