 He continued to erect a further seven high-quality stelae until AD 736, monuments that are considered masterpieces of Classic Maya sculpture with such mastery of detail that they represent the highest pinnacle of Maya artistic achievement.The stelae depict king Uaxaclajuun Ub'aah K'awiil ritually posed and bearing the attributes of a variety of deities, including B'olon K'awiil, K'uy Nik Ajaw and Mo' Witz Ajaw.The king also carried out major construction works, including a new version of Temple 26 that now bore the first version of the Hieroglyphic Stairway, plus two temples that have now been lost to the erosion of the Copán River.