A diptych is a painting or artwork that is two flat pieces hinged or attached together. Below is a diptych that has a blend of the principles of art: balance, harmony, and gradation. The balance comes from the use of the same colors, brush strokes, and intense disproportion of the characters. The harmony is that they are clearly from the same universe and they compliment each other. The painting plays around with gradation: small eyes to large ones, warped head shapes, light colors on the face compared to the dark background. Triptychs are the same as diptychs, but instead of two pieces of artwork, it's three. Below is a triptych that follows the same principles of art. The fact that the three pieces are connected by universe and interact with each other means that the artist is using harmony. The painting has balance because of the way the artist set up the two adults to be beside each other. It also has gradation because of the use of dark and light colors surrounding the peo...