This is what I made.

Given that I only had an hour to recreate the piece, I decided to use a medium that I knew. Python! I used TKInter to draw out the picture from scratch. In most of the reviews of the painting that I read, they described the rectangles as being randomly thrown around. I believe that to  be true, but for them to be deliberately randomly spread out. For that reason, and because of time constraints, I decided to randomly generate the positions the rectangles, but within parameters. I made it so that no matter where the rectangles are made, they're bunched towards the center to keep the crowded feeling of the piece. I also made it more likely for the rectangles to be taller rather wider, as they are in the piece. I think that gives the lights a more windowed look, like you're looking at the buildings at an angle.

My first few passes did not look like it at all, and I had to really analyze the stylistic choices that he made. It gave me an appreciation for the stylistic choices Lewis made in his piece. What otherwise looked like a bunch of rectangles (which it is) actually had a few other stylistic choices in it that I had to consider as I made my output look more like the original piece.