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WN watercolours, Uniball Jetstream, on Fabriano 12.5 by 9.5 inch 200GSM watercolour paper

For today's sketch, I tried to use as few colours as possible for mixing. So I used

• Yellow Ochre
• Perm Alizarin Crimson
• French Ultramarine
• Burnt Sienna
• Viridian

Mixing green with French Ultramarine and Yellow Ochre results in a very dull green that's almost usable. Having Viridian is quite convenient. I also used Cadmium Yellow and Cadmium Red for the metal of the lifting crane.

I've a comment on Facebook asking my approach to this scene. With any complicated scene, patience is the key. The slower you draw, the more accurate your drawing will be. Of course, it will have to depend on the amount of time you have. As you can see from my lines, I was rushing quite a bit to finish this within 2 hours.