For my shallow depth of field, i used a small aperture. And for my large depth of field, I used a larger aperture. For most my photos I had a f stop of 4 but my other pictures i had a f stop of 11. Since everything was in focus. In most of my photos I had the background a blur and the object in the front was in focus. In my first photo of leading lines, i kept everything in focus. So i used a shallow depth field. This was a really fun project! :)