Dusty wind blown air filters the setting sun exploding rich warm hues of reds and oranges in the light complimented by red purples and soft cobalt blues in the shadows.
I have been working the past two years to model clouds as volumes, similar to mountains in the sky. This differs from the usual prairie cloud painters who choose simple flat overlapping shapes, like curtains, to define form and the space that contains them. Modeling the clouds as volumes is complex and time consuming because it requires a matrix of colors which do not have strong specific edges.
What you see here are yellow direct highlights, purple reflections from the ground, blue indigo shadows which absorb light and light cobalt blue highlights which reflect the upper atmosphere. The roundness of clouds requires unique blending of contrasting colors without letting them get muddy.