Three Houses.
The woods are either dark or dimly lit behind a scrim. The houses are very simple- just fabric stretched over wood, you should be able to see the wooden supports through the fabric like these two paintings by German Painter Sigmar Polke. The houses will also be on casters so they can roll in and out.
Afternoon Woods.
You can see all that pink book page "leaves" on the floor of the woods. I'm thinking 8 trees, one stump, and another surface of various plants.
Early Evening Woods
Things get darker and more blue. See how the trees have moved around? There's a scrim behind the 8 trees that has other trees on it- either painted or perhaps just paper and light.
Grandmothers House
The woods are dimly lit and the light is on the house (could easily be Jack's). I love the idea of the bed being green in some way- it would be opposite of Little Red.