Excerpt:
...From the evidence of his sketchbooks and the spray-painted or partly prepared sheets that were meant to serve as the surfaces of new works, items that were left behind when he died, it appears that Krüsi savoured the creative process and was a tireless experimenter. He used collage techniques and also spray-painted over real fern leaves to create decorative patterns on his picture-making surfaces.

Often he laid down colours in what appeared to be a random manner. Later he would pick out shapes from these colour compositions, forms that suggested human faces, trees or animals. These he would highlight with bold, black outlines.