We will do this exercise on yellow Canson paper, then Salmon La Carte

First, we use yellow to red from left to right. Blocking in major shapes adds to vibrancy of color unless color is earth tone or back.

Now add strokes building up nice grass shapes

A few strokes of blue adds a complimentary color note as does the blue/green foreground

"Smith Rock" and "Sparks Lake" have good examples of grass shapes