To set up this dramatic wall finish, wipe your drywall substrate thoroughly with a microfiber cloth to ensure the canvas is completely free of loose construction particles or sanding dust. Apply two coats of a high-performance acrylic wall primer to provide a uniform gripping surface for the heavy plaster layers. Scoop a small amount of warm alabaster beige Roman clay onto a stainless-steel finishing trowel, holding the tool at a forty-five-degree angle against the wall surface. Apply the clay compound using short, sweeping, multi-directional strokes to establish a randomized visual texture across the architecture. Once the primary layer dries fully for four hours, apply an ultra-thin secondary layer to fill minor voids, then seal the surface with a clear, breathable matte wax coating.