Commissioned painting, from my own design, in a nook.
Yes, this is painted directly on the wall. See images to see that the wall was not one flat section, but three sections of a hexagonal shape. The little girl in front is on one bend and the other bend goes through the brook on the left side of the leaning trees. This wall painting took 25 hours to paint. About one hour per square foot.
The owner lights candles in the nook and has stated that the flicker of the candlelight causes it to appear as though the trees are moving in a breeze.