Nostalgic homage to the Atari of the 1980's and early 1990's. 320×200, 16 colors (Atari STE palette). Ranked #2 at Silly Venture 2016, Atari ST graphics competition.
Some references are pretty obscure, so here's a list from left to right: Tempest, Asteroids, Nolan Bushnell, Midi Maze, Yars' Revenge, Jack Tramiel, Lynx 2, Jaguar. The building is 1265 Borregas Avenue in Sunnyvale, CA that used to be the Atari HQ.
The image looks a bit squashed on modern displays as the pixels in a 320x200 resolution were not exactly square. Imagine the picture is 20% taller and the faces won't look as weird anymore :) See here for the correct aspect ratio.
Basic making-of video