a) the composition - wide range/array of grays, also lines and shapes clash, but work together to create a dynamic photo: it has a 'Parisian' look...
This photo brings the design of pillars to life; it changes the street-walker's perspective of the small details that few people notice in the architecture of the Portland library.
Modern/Classic approach; black-and-white photos are timely, make this easy to view Simple or complex: whatever you make it to be!