keep everything exactly the same in the rendering do not change the layout walls doors windows shower niche plumbing fixtures wall tile lighting vanity or any materials only make the tiles on the walls and the floor much larger and show the grain in the reference tile more make them wider and longer they are bigger then 16x48 going vertically on all walls and floor show the grain prominently keep everything else exactly the same make the final image look like a realistic photo rendering with natural lighting and soft shadows
