Pulling a camera view and hitting render is much like picking up a point-and-shoot camera and clicking away. Many renderings I'm seeing have exceedingly little that is artistically pleasing. The renderings provide raw information that does not take into account the concept of aesthetics. An artist, working digitally, can manipulate the viewer's eye by leading it through the composition to a specific focal point. The lightest part in an architectural scene is the part that is perpendicular to the light source, and the closer the parts are to the light source, the brighter they will be. You can take some artistic liberties and pitch planes toward and away from light to create drama.