make this render fully photorealistic while preserving 100 of the existing architecture layout proportions scale walls openings furniture positions and all design details exactly as they are do not redesign reinterpret simplify or modify anything do not change wall positions dimensions heights thicknesses spatial relationships or the ceiling structure design in any way keep all materials colors finishes and textures exactly the same except change the ceiling material only to light oak wood with a clean refined contemporary finish less rustic smooth surface subtle grain minimal knots only enhance the image with realistic lighting accurate shadows natural reflections true to life material behavior camera exposure global illumination and photoreal rendering quality maintain the exact camera angle and composition the goal is to improve realism only not design with the single exception of the ceiling material
