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.
This is one of my favorite mountain silhouette photos. The pastel orange and blue seem especially apt for Easter and April in general.