His artistic method relied on the interplay of geometry and colour. Drewes focused on the tension between static shapes and implied motion. He frequently used the woodcut process to explore these themes, allowing the physical texture of the timber to influence the final print. His compositions often feature intersecting circles or sharp angular forms that create a sense of depth. He avoided purely decorative elements, preferring to build images through a logical arrangement of parts.

Modern collectors find his work appealing due to its clarity and structural integrity. His prints provide a sophisticated visual anchor for minimalist spaces. The bold use of primary tones and balanced proportions makes his art easy to integrate into various rooms. Because he was a master printmaker, his works possess a tactile quality that digital reproductions often lack. His pieces represent a direct connection to the functionalist ideals of the Bauhaus movement.