Train ticket montage iPhone / iPad case

This has been my biggest project to date. Three years in the making. I used to work in central Wellington, New Zealand. Like many of my colleagues we would commute into the city by train from various locations. The various routes and colors gave me an idea. I thought it would make for an interesting montage. It also tells a story. So I collected their used monthly passes each month. This took a long time. I then scanned and clear cut each individual ticket in Photoshop. This also took a long time! Each ticket is individual, I didn't just repeat a color - I kinda like suffering for my art I guess. The closer you look the more detail you see.