The next day I checked on the painters' progress. They had done a lot of work in one day.
On the following day it was clear that this was developing into a trompe l'oeil painting of two giant holes punched through the building and leading out to a beach.
The next day the scaffolding was cleared away. The artists were gone. The whole side of the building was now an advertisement for Jamaica, showing people at the bottom escaping out through the building onto a beach. The painting is visible from quite a distance. Well, visible to foot traffic. It's a one-way street, with traffic facing away from the building. But, all in all, not bad exposure for a couple of artists, whoever they are.