Hearst Tower: Revisited!

I realized when I did my recent Hearst Tower post that I didn't have a sketch of the outside of the building. So, when I found myself near the Hearst Tower with forty minutes to spare, I decided to give it a go! All of the white and black pen happened indoors, it was chilly and taking forever to dry outside and I didn't want to be late! Hazards of drawing on location! ;)