Having stumbled on this piece made it easier to spot the other further along the street, each one slightly different but constructed in the same manner. After a bit of online digging, it turns out the work is by World War Won. The guys at Vandalog had posted about a show opening the artists had recently in Amsterdam. Take a look at the World War Won website as they have some other interesting project they have working on around London.
World War Won — Brick Lane Part 02