All simple shapes laid out in composition.
The colors being mixed and ready for application.
All the important details.
The separation between lights and darks.
The darkest part of a drawing.
A moment of thoughtfulness.
The lightest part of a drawing.
The area which has all the values and tones.
Capture all the details.
Clear objects from the depth of field.
View all the colors of an object.
Simplify the shapes being drawn.
Pre-mixing all colors on a pallet.
Planning everything in tissue form.
Using a series of gray values and textures.
Using dingbats to represent the values.
Coming from all directions.
With a definite direction.
In negative form.
All of the above