Clouds are very difficult to paint, because of the irregular shape and the various, semi-transparent shades of color. I wanted bright blue cloudy skies as a background for various "blueprints" of the F16 fighter jet, taken from the appendix of a computer simulation game manual.
This was my first attempt of painting clouds. I used various irregluar stencils made from torn paper and torn paper handkerchiefs that were loosely held. Various blue hues were used, usually diluted with water: azure, bright blue, violet.
After finishing the background, I put a black-and-white printout of the fighter data below the shirt and traced the lines, with light shining through from behind.
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The images by Ingo Karkat on this page are licensed under Attribution-ShareAlike 4.0 International