Exercising my memory

This is a charcoal I did of the Ponte Alle Grazie on the river Arno in Florence (the apartment we stayed is in one of the buildings). It was kind of an exercise to see if I could use the same technique that I had learned on a landscape. This method really makes you look deeply at what you're drawing. I had never noticed in the photo that there is someone fishing under the bridge, I like how it gives a sense of proportion.