Lord Chamberlin's men and King's Men
Their emphasis on the power of personal imagination puts them in the tradition of Romanticism, but unlike their forebears, they believed that revelations could be found on the street and in everyday life. The Surrealist impulse to tap the unconscious mind, and their interests in myth and primitivism, went on to shape many later movements, and the style remains influential to this today.
The answer is Giovanni pierlugi
Mixtures of pigment and clay --slip— they created (check the passage you read or wtv it should be sum like this) and for the derive question