"Composition diagonale" exemplifies Max Ernst's exploration of automatism and surrealist techniques, employing dynamic diagonal lines and abstract forms that create a sense of movement and psychological depth. The work reflects Ernst's interest in accessing the unconscious mind through unconventional methods, potentially incorporating his signature techniques such as grattage or frottage to generate unexpected textures and imagery. The painting's compositional energy and enigmatic visual elements invite multiple interpretations, characteristic of the Surrealist movement's embrace of ambiguity and dream logic.