For this cold February, I'm using a nice snow scene wallpaper, along with the "My Elementary" icon set, and the Mint XF-17 Dark GTK2 theme. I am running Ubuntu MATE 15.10 with the Docky launcher, screenlets, the Firefox and Chromium browsers, Audacious and Clementine music players, and Deluge torrent client.
You can get the Mint XF-17 theme here:
http://gnome-look.org/content/show.php/Mint-X-SF?content=165536
You can get the snow mountains wallpaper here:
http://www.desktopwallpaperhd.net/wallpapers-mountain-desktop-36811.html
