hance the existing render by improving global lighting quality overall brightness and material textures only while preserving the original geometry layout proportions camera angle and composition exactly as they are improve global illumination to make the scene feel less dark and more open while maintaining a warm and natural light temperature increase ambient light and indirect light subtly to brighten the scene without flattening contrasts or losing depth refine the architectural lighting for a modern elegant look balance highlights and shadows soften harsh contrasts enhance indirect and ambient lighting keep all lighting warm and cohesive avoiding cold or neutral tones upgrade the house textures with higher realism and a modern finish without changing colors materials or architectural style improve fa ade texture definition and depth add subtle surface imperfections enhance material sharpness without over detailing ensure all lighting and texture improvements blend seamlessly with the existing image do not add remove or move any architectural landscape furniture or human elements no changes to time of day mood environment or color palette only refinement and realism enhancement the final result should appear brighter warmer and more refined like a professionally lit modern architectural visualization fully faithful to the original image