Complex sentence: His composition depicted Christ on the Cross with the Virgin Mary and St John and at the base of the Cross'trunk he added some relief carvings depicting scenes from Jesus' life and a sculpture showing Christ being brought down from the Cross.
Split into simpler sentences: His composition depicted Christ on the Cross with the Virgin Mary and John the Evangelist at the base of the Cross'trunk. He added some relief carvings depicting scenes from Jesus' life and a sculpture showing Christ being brought down from the Cross.