To download the wallpaper, all you have to do is click here and save it directly to your desktop in a new folder. It's important to save it into a new folder of its own as this is the easier way to be able to use it as a screen saver later on. I'm not too sure what it will turn out like on other screen sizes or computer platforms, but as I created it as a huge image it should work out just fine. Plus it's retina ready too.
Wallpaper: system preferences > desktop & screensaver > desktop > + symbol > select image
Screen saver: system preferences > desktop & screensaver > screen saver > select classic style > source > select folder > click choose
I've also made an iPhone version which you can download by clicking here. Just made sure you pinch your fingers on the screen to zoom out when setting it as your wallpaper/lock screen.
Do let me know if you'd like me to continue doing the rest of the months of the year, and I'd really love to see photos if any of you use this design.