The Eyestalkers are a colony of watchful eyes. They stare unblinking from their window out into the world, tracking all passersby. The staring eyeballs on stalks are there as a visible manifestation of all the invisible surveillance people are walking into when they go into the city, like the many hidden cameras or systems tracking your phone.
The Eyestalkers aim to create a tangible sense of being watched, to bring the surveillance out into the open, to create that necessary and warranted sense of paranoia that is lacking because of the elusive nature of modern surveillance. Because of their erratic movements they are real eyecatchers.