One brick at a time!

Ingenious, close observation reveals that there is very careful planning of the brick layout, which means this is a regular work: from the hole left to take control of the handle bar along with a gunny bag to protect the arm; to the rear bottommost brick placed in order to stabilise the entire column of bricks and stop them slipping off the rear; as well as the first brick placed on the cycle chain pedaller to build the edifice.  Brilliant!