Finally got around to testing it before I tell my Mom about it. Looks good!
One minor issue: Obviously, when you crop a photo into a square, it cuts it off because the widget is sized into a rectangle. However, when you click to view the photo, could there be an option to open the full image, or at least how it was cropped?
Right now, if I crop it into a square box, it forces it to a rectangle. Tapping the photo should (at least, imo) show the cropped square photo or the original version and not what is shown in the actual widget photo.
Does this make any sense? If not, I can try to take some screenshots along the way of what I am doing to show you.