Evaluation:
1 point -- Good choice of subject matter
1 point -- Use of at least 2 colors
2 points -- Good composition and use of paper color
2 points -- Quality, workmanship, and visual interest
4 points -- good use of light and dark colors to show shadow and highlights
10 points total.
https://www.youtube.com/watch?v=aOhJWBZQSfE