12- Finally, to add some color variation to the forests, add yet another layer set to overlay, filled with neutral gray and with the forest mask applied. Run a plasma cloud render with the turbulence set somewhere in the middle (I used 5.)
Attachment 3902
This will result in multicolored forests:
Attachment 3903
Set your colors to black and white again, and run a gradient map on the forest texture layer. The results should look something like this:
Attachment 3904
I hope this helps!

