According to professor tilson's lecture on baroque architecture, one of the most theatrical practitioners of the baroque style, is said to have eliminated the corner in architecture.

Answerborromini;

Clay is a good medium to sculpt because its shape can be changed easily

White: titanium white.black: mars black.red: primary magenta, quinacridone red or alizarin crimson, cadmium red light.yellow: primary yellow, diarylide yellow, yellow ochre.blue: primary cyan, ultramarine blue, phthalocyanine blue.orange: pyrrole orange or cadmium orange.green: permanent green.