What are the unique advantages of Byzantine painting?

Byzantine painting is mainly represented by murals and illustrations. Although this art form is not as Byzantine as mosaic, it is more widely used because the materials used in painting are cheaper than Masek and the requirements for painting techniques are relatively simple. The best preserved Byzantine art works are icon paintings, and Byzantine murals can be found in Christian churches in other parts of the world, ranging in area from tens of square meters to several square centimeters.