Three to six flat Values
A good thumbnail exercise is to keep to a three to six simple tones: light, middle, and dark.
In each row their are ranges of value on the side, they range to three to six gaining one tone for each row.
This will help when you have too many clients wanting lots of thumbnails and their not enough time.
The three to six value study is an effective way to plan a painting, not only because it’s fast,
lends itself to a simple, bold statement.
Instead of getting carried away with details of the figures,
helps you look at the design and the shapes of the composition and it helps you save time not blending.