This could be done with white fabric painted with black, then lit with green, orange, and finally, blue (as the day progresses) for the forest scene. A Midsummer Nights Dream opera. Jayme Mellema scenic design for The Princeton Festival.
A scenic designer creates theatrical, as well as film and television scenery. Scenic designers come from a variety of artistic backgrounds, but in recent years, are mostly trained professionals, holding a B. degrees in theater arts.