Saint Bonaventure is portrayed in this design wearing the vestments of a bishop, marked by a serene expression and a halo indicating his sanctity. In one hand, he holds a palm branch, a traditional symbol of martyrdom and spiritual victory, and in the other, a book, representing his theological writings and role as a Doctor of the Church. As a Franciscan and major figure in scholastic theology, Saint Bonaventure's image here emphasizes his wisdom, humility, and devotion to Christ.