"Three Masters" by Nalen Highvale.
From left to right, Hai Masterbrooke, Horbrar Vusk, and Nalen Highvale.
  Some time after becoming the third master of Sukorak, Nalen Highvale decided to paint a portrait of his former master to hang in the tower. After completing it he was inspired to add both Hai Masterbrooke and himself to the piece, creating the official portrait for all three masters of Sukorak, which was eventually hung in the library of the tower.