classical exterior shot adjust lighting and shadows increase contrast and adjust brightness to enhance shadows and highlights add reflections enhance reflections on windows and other glossy surfaces improve sky and environment adjust the sky to look more dynamic perhaps by deepening the color or adding more detailed clouds detailing and texturing add more detail to surfaces like the building facade trees and ground to make them more realistic color grading apply a subtle color grade to give the image a cohesive and polished look depth of field add a slight depth of field to blur distant objects and focus on the main building architecture