From Three-Legged Dog, bend the right knee. Actively squeeze your right heel in toward your hip, lifting the knee high.
Lift your head up and turn to look over your left shoulder, arching the spine. Think about drawing your head and foot toward each other (if your spine is extremely flexible, your foot and head will touch).
Stay here for five breaths, keeping the core strong.
Then repeat Three-Legged Dog and Arching Three-Legged Dog with your left leg. Step back to Downward Facing Dog.