enhance material realism to achieve a high end photorealistic archviz render critical do not change colors white stucco must remain pure white window frames must remain satin black aluminum stone must remain orange brown tones roof tiles must remain terracotta pavement must remain concrete pavers with grass material improvements stone more depth roughness natural variation no repetition stucco matte subtle texture not plastic concrete slight imperfections realistic variation roof tiles correct alignment clean spacing proper perspective pavement correct scale no distortion clear perspective lines global remove plastic cgi look add subtle micro detail and realism keep textures sharp but natural restrictions do not modify architecture or layout do not move or add elements keep exact camera and framing do not redesign only improve realism