Need to refine values accurately

Major shapes are almost done. Now I need to refine values to separate cool shadow areas from hot sun-lit areas. Green in the mid-ground is too dark or deep.

Getting Opaque entirely

  It's not intentional - that's the problem - but everything is getting to mid-tone and opaque. For foreground I need to make colors purer. The shadow needs to be cooler as well.

Compositino is solidly defined

The composition is clear by now including foreground, mid-ground, and background. Now I need to get into more detail on the main subjects for shapes, values, and color/color-temperature.