Stack and Tilt
The hips are level, and the left shoulder is slightly higher than the right only because the right hand is lower on the grip. The spine is straight up and down, with the head centered over the ball. This promotes a rotational move going back with no lateral shift.
The shoulders are tipped back, and the hands are pushed well in front of the ball. The spine is tilted away from the target, with the head behind center. Weight favors the back foot. This promotes a shift to the right side on the backswing.