I can't see images, but I can help you understand the concepts.
- Variety refers to the use of different elements and principles in a work to create interest.
- Pattern is the repetition of elements in a design.
- Emphasis involves creating a focal point or drawing attention to a certain area of the artwork.
- Radial balance is a type of balance where elements radiate from a central point.
If the artwork strongly exhibits elements like variety, pattern, and emphasis, but lacks the characteristic of elements radiating from a central point, then radial balance would be the principle that is NOT represented in the work of art.
Check for the presence of these characteristics in the artwork to determine which principle is missing.