What a shame. I still really like the image from September's background! But, a new month means a new background. In the same vein as September, October's image is also a multiple exposure. Also done in-camera, this is a series of the clouds in Flagstaff, AZ on a particularly gorgeous day. I believe it was three overlapping images... but it may have been five.
First, the version I'm using with the October calendar.
Second, the image without the calendar.
Both are plenty big for background use, so click, right click and enjoy!