Think of clouds as boxes that have perspective so you can make them look like they have depth. [14] X Expert Source Kelly MedfordProfessional Artist Expert Interview. 10 March 2021

To create lighter colors, add white to the original paint color as you go.

Most shadows in clouds are still lighter in color and value than the sky. [17] X Expert Source Kelly MedfordProfessional Artist Expert Interview. 10 March 2021