This is a nice B/W shot with clear details and good contrasts. Brussels is also where the European parliament sits (members alone about 750 plus all the other employees) and therefore I can imagine that taxis are always busy.
My godmother is from Brussels ... she moved to the states after she married an American soldier (my grandmother's youngest brother) shortly after WWII. I'm sure she is very familiar with this square. Wonderful B & W, Doug. Looks like a very busy place.