How does the Sandman's sand control manifest visually?

Visually, the Sandman is often depicted as a humanoid figure composed entirely of sand. He can shift his form to a degree, creating different shapes and weapons from his sandy body. His appearance can vary depending on the writer's interpretation, sometimes appearing more like a menacing figure and other times more amorphous and fluid. The sand often has a reddish or brownish tint, reflecting his association with the Red Room and his tragic origin.