use the provided photorealistic rendering as the base image use the provided reference image only as the shape reference for the staircase side walls stair cheeks treppenwangen important this is a strictly localized geometry correction only correct the shape of the two staircase side walls do not change anything else task the two staircase side walls are currently not identical and do not have an even consistent curve correct the staircase side walls so that both side walls have the same curve both side walls are symmetrical both side walls have a smooth even continuous swing both side walls match the reference image the curvature is clean balanced and identical on both sides the goal is both staircase cheeks must read as one mirrored pair with the same elegant uniform curved geometry reference priority use the reference image only to define the correct curve and form of the staircase side walls absolute preservation rules do not modify the staircase steps the staircase width the staircase height the number of steps the railing the ramp the terrace the retaining walls outside the staircase cheeks the house the garage the path the bench the planting the materials the lighting the perspective the camera position the composition do not redesign the staircase do not move the staircase do not change the architecture do not reinterpret the whole scene only adjust the geometry of the two staircase side walls so that they become identical and evenly curved according to the reference material rule keep the existing white plastered material of the staircase cheeks unchanged this is only a shape correction not a material change final goal the final image must remain visually identical to the base rendering except that the two staircase side walls are now symmetrical and have the same smooth even matching curve exactly as intended in the reference
