Strengthen your wrists, arms, and abs, hanging in the balance of Tolasana.
Side Plank Pose ...
On to the arm balances, approximately from easiest to hardest:
15)Lolasana (dangling earring pose)
16)Tolasana (scales pose)
17)Kukkutasana (rooster pose)
18)Purvottanasana (inclined plane, or reverse plank)
19)Astavakrasana (8-bends pose)
20)Eka pada bhujasna (I think this is the one called ...