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Art class today: we had to paint our live model with contrasting
colours (those on the opposite sides of the colour wheel, like
blue-orange or yellow-purple). In my case cadmium red and phtalo green.
Using these colours results in enhancing each other, red becomes even more red when placed next to green.
Secondly: when mixing opposite colours you get the most beautiful greys and blacks.
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Here I show three stages of the painting: the charcoal drawing, the high
contrast basic painting, and finally the adding of red-green greys. I was
suprised by the result: here it looks like the model got a heavy sunburn, but in reality the painting looks more harmonic than on these pictures.