I created another Transparent Layer, filled it with dark green and added a thin line of small trees using one of my tree nozzles at 4% on the Nozzle Scale slider. Next I added the house floater, sizing it to fit the middle distance of the painting. Then I created another Transparent Layer, painted in more trees (from 9% to 15%) to the left and right sides of the painting. I used these settings to light the trees and then the house:

Next I added the red house floater and sized it to fit. Then added another Transparent Layer and added more shadows to the grass. I set the Nozzle Scale slider at 2% for the far grass and varied it up to 15% for the nearest spots, then set the Opacity to 55%. The 5 spots circled in red is where I will put some bushes later on. Then I added more trees to the middle ground using a Nozzle Scale slider setting of 25%.