Answer to Question 1
Answer: Clark surmised that the mask was a symbol of fear and darkness. He did not recognize the ritual function of the mask that affects its features. The masks were worn in celebratory ceremonies as vehicles through which the spirit world became accessible, and its features were exaggerated to separate it from the real.
Answer to Question 2
Answer: He paints onto a sheet of raw birch an illusionistic frame and matte, a painted frame and seascape, and an overlay of scrolls of color, globes of wood, and snapshots of landscape, in a trompe-l'oeil effect.