Which Elements of Art and Principles of Design are important in
mandalas?

There are five primary components of a mandala: symmetry, geometry, color, number.

Explanation:

Principles of design are the criteria used in art making to demonstrate some messages in their work. Among them are balance, contrast, emphasis, movement, pattern, proportion, alignment and unity. Balance Balance is the existence of a symmetry line in an image.

based on the images pictured above, the major difference between the two cathedrals: the cathedral of notre dame and the amiens cathedral, is that the cathedral of notre dame emphasizes the horizontal lines while the amiens cathedral emphasizes the vertical lines.