I just got back the 4th chapter of Energize Your Art from my copy editor. This chapter wraps up the essentialness of form, light, and space in art.
I link to my Substack, The Shrewd Artist, using this website has my hub.
Three Visual Axioms
In the first three chapters, I introduced light, form, and spatial depth. Together, they are three visual axioms—the holy trinity of art. These elements were fully developed by renowned artists such as Rembrandt, da Vinci, Monet, and Vermeer and are indispensable to creating powerful works of art. Working together as a team, each element is necessary to give us a reliable view of reality and create truly great paintings. Read more …
Michael Newberry 
how would you fit matisse into those 3 parameters of color space form?
I wouldn’t try. He is essentially a flat painter.