rectangular cuboid sculpture 3d model

Create a strict rectangular cuboid with clean, sharp edges. The proportions must be exact: length = 7.5 × height and width. Use the attached sketch as the primary reference. Deform the cuboid with sculpted, directional folds that express movement flowing through the volume, not fabric placed on top. The deformation must affect one long face and the two adjacent square faces only, as shown in the sketch. The opposite long face must remain mostly flat. The folds must be tensioned, stretched, and frozen in motion. No gravity-driven draping. No realistic cloth simulation. The fabric-like effect must be integrated into the geometry. Contemporary baroque style, sculptural, minimal design object. Clean topology, suitable for Blender sculpt refinement.