please render an external cantilever road signage in realistic 3d based on the uploaded design place the signage on a roadside grass curb during a sunny afternoon the signage is positioned on the right side of a 4 carriageway road facing a large roundabout ahead with palm trees in the background the design should be industrial in approach using a large robust support pole and a cantilever arm that holds a light aluminum panel emphasize scale by showing vehicles on the roadway ensuring the signage proportions are accurate relative to the 4 lane width highlight realistic daylight shadows metallic pole textures aluminum panel surfaces natural grass detail and the overall sturdy engineering of the structure render from a dynamic perspective view to capture both the road context and the sign s placement before the roundabout