Zorn in oil, the usual approach:
Quasi Zorn in watercolor:
Quasi Zorn is 1) when I realized that I didn’t have ivory black and cadmium red in watercolor and replaced them with neutral tint and pyrrole red; and 2) when I couldn’t decide if the white of the paper counts or I should use the titanium white. The paper white doesn’t help in mixing colors, but the titanium white turns everything too opaque. I will keep digging and meanwhile order some new colors!