Don Davis is a space artist and animator. He is a member and Fellow of the International Association of Astronomical Artists. Visit his website to see his paintings and his writing on the colors of Mars.
In 1971 I was being trained to work with the airbrush by the map artists at the U.S. Geological Survey's Branch of Astrogeologic Studies in Flagstaff. However, the project I ended up spending about a quarter of a man-year on was a hand-painted map globe of Mars.
As the JUNO spacecraft headed away from Jupiter after its close look at the Great Red Spot, it looked backwards at this vast reddish storm nearing the horizon. In the foreground, the lighter cloud zones show variations of cloud texture and color.