I'm happy with the 7 elements of design: form, shape, line, space, value, color and texture. Lots to think about
The Elements of Design are the things that artists and designers work with to create a design, or composition. The Elements are: line, shape, space, value, color and texture.
Line … The Graphic Unifier, Curved, Straight. Directional Thrust: Horizontal, Vertical, and Diagonal.
Shape … Naturalistic, Geometric. (The Golden Mean)
Space / Size … Large, Medium, Small. Proportion or Scale. (The Golden Mean)(Perspective)
Value … Light, Dark. (Value Patterns)(Arial Perspective)
Color … Hue, Chroma, and Value. (The Color Wheel)
Texture … Rough, Smooth, Soft, Hard.