Even though feet play a prominent role in this image, as demonstrated by the poster and title, my interest is directed to what their interest is. What is going on to their left?
Mr. May uses his wit to great effect here -- the tension in the people is palpable, and tells an anxious story. Meanwhile, the poster in the window behind them calls our attention to the differing footwear below. The title is icing on the cake. Wonderful stuff.