The Escalator

During our visit to MoMA, Liz and I were trying to figure out what floor we wanted to go to next.  We were standing looking down onto the escalators criss crossing each other and I took a wide angle photo but it was not that interesting.  So I zoomed in a bit and saw this woman all alone on the down escalator looking at her phone.  So I started shooting and realized what was going to make this photograph, was to have other people visible at the exact same time. So then I was looking at both the up escalator on the right and at the opening showing the floor below, on the left.  I was rapidly shooting but saw both the small pedestrian on the lower left and the passenger on the up escalator on the upper right!  Click!  Got it!