For the high key picture, this was a group of flags on a wall in the first floor. A light is shining on the far right, with the rest of the photo having a slight reflection on the left.


For the low key picture, this was the side of the entrance to  the cafeteria. The light lightly shines on the right hand side, leaving the other areas dark. Due to the fact that the cafeteria had lights on, it reflects on the surface of the entrance.