do not modify the original model geometry proportions layout or structure in any way keep the exact same architecture and forms only improve the materials textures and surface details to make the visualization significantly more realistic enhance material accuracy physically correct textures proper roughness reflections bump normal maps and refine surface imperfections for a natural look use warm natural lighting golden hour tone to create a cozy and inviting atmosphere improve global illumination realistic shadows soft light diffusion and accurate light interaction with materials focus on achieving high end photorealism through better material definition subtle imperfections realistic reflections and natural color balance without altering the shape scale or design of the building behinde the window is other room so we see white ceiling