LINE: 

• path of movement
• active – passive
• bold – delicate
• flowing – light
• straight -curved
• thick – thin
• dark – light
• broken – continuous
• geometric – organic
• implied – actual
• precise – irregular
• contour (outline, edge)
• implied (lines with movement/direction)
• expressive (lines the represent and expression/feeling)

 

SHAPE/FORM:

• 2-dimensional
• 3-dimensional
• solid – void
• concave – convex
• circle – sphere
• square – cube
• triangle – pyramid – cone

 

SPACE:

• 2-dimensional
• 3-dimensional
• positive – negative
• open – closed
• filled – empty
• actual – implied
• interior – exterior
• illusion of space

 

LIGHT/COLOR/VALUE

• value – shading – contrast
• tint
• shade
• hue
• pigment
• primary
• secondary
• color interactions
• bright – dull

 

TEXTURE

• actual – visual
• soft – hard
• rough – bumpy