Sun Warrior takes the right leg back wide the left foot facing forward and the back foot at 45 degrees.
Make sure you heel of front foot and instep of back foot are in line.
Bend through the front leg and keep back leg straight. Do not take knee forward of the ankle.
The back arm stays close to body and moves down the back leg and you bend backwards.
The back hip is pushed forward to enable the back bend.
Take the left arm straight up in the air and imagine your fingers moving up to touch the ceiling to lengthen through the side of the body. Look towards the back of the hand.