Hi - need help - can you correct my translation? (part IV)?

The facade is divided horizontally into three parts by two pillars ending in two each kiosk. In each of the three parts is a portal with pointed arch. The side doors are much smaller than the main one. In the bezel to the right we find the figure of St. John with a lamb in his left hand, covered with a cloth, while the right is a scroll unrolled engraved Ecce Agnus Dei (Behold the Lamb of God). The lunette of the portal on the left, there is the figure of Saint Blaise, one of the patron saints, identified by the marking on the sides of the head BLA / Seis. The saint wears the vestments of bishops and supports the model in hand desrtra city of Ostuni, symbolically represented by a castle with three towers. The bezel of the main portal shows Bishop Nicholas Arpone kneeling before a throne where sits the Virgin Mary and a scroll with a simple prayer to Our Lady