It's not just a crack on the wall. "Find the cracks and exploit the discoveries to be revealed there . then move on to practice running headlong into the brick walls. Cracks crack first. Heads crack before brick walls. (from: STREET ART UTOPIA)"
Layout ideas - Designed by Jake Hill. I am inspired by the angled cropping of the images. It creates great eye movement, and visual interest. There's a great balance of negative and positive space throughout the layouts.