modify only the marble wall on the left side of the image keep the same marble material color tone and veining but convert it into a ribbed fluted marble surface with vertical evenly spaced ribs the ribs should be subtle architectural and consistent across the entire marble wall do not change lighting camera angle composition proportions furniture windows wood paneling ceiling floor exterior view or any other material or element in the scene all other aspects of the image must remain exactly the same mantain wood on the upper and lower part and use the same marble from the render