This ceramic mural depicts a tetramorph. A ‘tetramorph is a symbolic arrangement of four differing elements, or the combination of four disparate elements in one unit. The term is derived from the Greek "tetra", meaning four, and morph, shape. In Christian art, the tetramorph is the union of the symbols of the Four Evangelists, derived from the four living creatures in the Book of Ezekiel, into a single figure or, more commonly, a group of four figures – associated with one of the living creatures, usually shown with wings. The most common association, but not the original or only, is: Matthew the man, Mark the lion, Luke the ox, and John the eagle.' (Wikipedia)