The first set was taken in an underpass, although people where in constant shot they were not that crammed in as can be seen in the first example with most of the figures too far away.
The second shot taken only moments afterwards works a lot better. In it there are people in the far background, the middle ground and the foreground with some nice motion blur. This was by far the best shot of the small series I took, which I feel works well.
The second set of images for this exercise was taken in a small shopping centre. These didn't work as well as the underpass but do show the milling around of people. The best image is probably the third, this image shows more motion and has varying sized people making it more interesting. They also all seem to be flowing in the same direction which gives more of a flow and less randomness.