To get the full resolution, ensure you download from the link
here.
Specially designed to look great on a 4k dual monitor setup. The brightness has been lessened to make it less obtrusive to a desktop setting with overlaid icons or nearby windows. Artistic license was taken beyond my usual Hubble processing to give it a more saturated appearance, and to give a greater color distinction between the yellow nucleus and blue arms.
I fudged the upload date & taken on date so this wouldn't show up as "new" in the gallery.
The original, non-wallpaper version of the galaxy, along with extra meta data and information is here:
flic.kr/p/2j5Buh1