variety of line
Many different kinds of lines: thick, thin, dotted, dashed, zigzag, wavy, curly.
composite shape
A shape made by joining two or more shapes, like a house made of a square and a triangle.
symmetrical
The same on both sides of a middle line, like a mirror image.
asymmetrical
Not the same on both sides.
real texture
How something actually feels when you touch it: smooth, bumpy, rough, soft.
illusory texture
Texture that is drawn or painted. It looks rough or fuzzy, but the paper is flat. Also called visual texture.
crayon etching
Art made by covering bright crayon with dark crayon or paint, then scratching lines through it.