Art elements
Christopher Molnarにより

1. Line
1.1. horizontal
1.1.1. peaceful
1.1.2. calming
1.2. vertical
1.3. diagonal
1.3.1. action
1.4. curved
1.5. delicate
1.6. bold
2. Texture
3. Value
4. Form
5. Shape
5.1. organic
5.2. geometric
5.3. representational
5.4. abstract
5.5. seen
5.6. imaginary
5.7. repeated
6. Color
6.1. 3 primary
6.2. mixed
6.2.1. tint
6.2.2. shade
6.3. have feelings
6.3.1. red
6.3.1.1. warm
6.3.2. blue
6.3.2.1. cold