I like to change the photograph regularly; it's a thing I do, usually around the first of the month. I set it not only on this site, but as my Facebook cover photo, my desktop wallpaper, my phone lockscreen, and even on my Nook. Below is a brief description of why I'm using the photo I'm using.
I didn't specifically have a photo in mind for the month, so I decided to just go with "pretty". And while the banner here isn't quite right what with being such a vertical picture, it looks spectacular on my phone. So there's that.