Arch Linux x64
Theme: Greybird (33% opacity on panel)
Wallpaper: Taken from here
UI Font: Adobe Source Sans Pro
Wallpaper is split across two monitors with the orange portal on the right side of the left monitor, and the blue portal on the left side of the right monitor
Definitely the coolest multi-screen wallpaper ever! Might have to steal that one myself, haha.
I'll pass on posting a screenshot of any of mine. For work think about stock Elementary OS and you'll know what my Linux station looks like. For home imagine stock Linux Mint 15 and you'll know what that one looks like.