Balance refers to the even distribution of weight and visual elements in a work of art. This can be achieved through the use of symmetry, asymmetry, or radial balance.
Harmony refers to the pleasing arrangement of elements in a work of art. This can be achieved through the use of similar or contrasting elements, such as color, shape, or texture.
Proportion refers to the relative size and scale of elements in a work of art. This can be achieved through the use of the golden ratio, Fibonacci sequence, or other mathematical principles.
These three principles were considered essential to creating beautiful and aesthetically pleasing works of art in ancient Greece. They were used in everything from architecture to sculpture to painting. By following these principles, Greek artists were able to create works of art that have stood the test of time and continue to be admired today.