keep the exact same layout geometry proportions and camera angle do not change any colors materials or shapes preserve the existing design 100 enhance the scene with high realism improve material textures subtle imperfections natural shading soft reflections add realistic lighting and global illumination refine shadows to be soft and natural increase overall brightness of the room as if there is a central ceiling light simulate a warm diffused ceiling light source not visible in frame evenly illuminate the entire space without overexposure eliminate harsh dark areas while keeping depth and contrast maintain a calm soft natural atmosphere do not restyle redesign or reinterpret the space only enhance realism and lighting
