Install a realistic wooden cargo retaining wall inside the open railway wagon doorway.
The wall should be made of rough wooden horizontal planks with vertical support beams, similar to freight cargo securing structures.
The wooden barrier must completely cover the opening and partially hide the cargo behind it.
Match the existing perspective, lighting, shadows, weathering, wood texture, and industrial railway environment.
Keep the wagon color, metal structure, floor, cargo, and camera angle unchanged.
Photorealistic. Natural freight train loading barrier. Do not modify any other part of the image.
