For the section covers, we used a large diagonal band up on top that references rock-concert posters. This system allows the section header to be placed as a constant background element and for there to be a preferential reefer space up on the right. In addition, the main central space is left free to be filled with either a single image or with lozenge reefers.
The simple color-coding of the sections —blue=music, green=arts— becomes another branding tool.