When you step back right, step directly backwards. You are already facing north-east. Elbow is bent to 90-degree angle. Forearm is at 45-degree angle to the floor. Target at waist level for practice.
Actual target is femoral artery.
Flexed foot raises from floor to opposite knee, points as leg is extended, returns to flexed in chamber at opposite knee. Generally, double high defend serves as a chamber for double hand blocks and strikes, such as knife-hand techniques. When the hands swing backward after double-high defend, imagine that you have trapped an attacker's arm and are pulling someone off balance. When you pop a foot back into walking stance, you should be at a 45-degree angle to your attacker. Your front hand is the same as your front leg.