With the released of the Developer Preview 3 of Android M (now called Marshmallow), it brought along with it some cool new wallpapers (the first 10 are from the developer previews).
The other wallpapers that you see below are some cool if you are rocking a two-monitor setup so then you can have one continuous wallpapers instead of two different ones.
If right-clicking at clicking ‘save as’ doesn’t work for you, you can download the zip file here: Android M preview 3 wallpapers .
You can find these wallpapers (under the Pattern & Design and Architecture section) and more at www.thecanadiantechie.com/wallpapers.
You can also find more dual-screen wallpapers at Twelve South’s website: https://www.twelvesouth.com/wallpaper.