Top and center, you'll see the status bar is hidden, thanks to the tweak SB Hidden StatusBar. The status bar is hidden on the lock screen and Springboard, but reappears everywhere else.
Directly below is the function toggle widget NCSettings, which you can only place on the springboard with the addition of Dashboard X. NCSettings has plenty of other functions built into it, like Bluetooth, cellular data, location services, and more...
Nestled above the dock is a typographic clock called WordClock Widget.
The dock has five icons on it, with the use of Five Icon Dock. The icon theme is Genesis. Winterboard gives you the option to have a transparent dock, which is also enabled here.
At some point you'll notice the font is also different, which can be done with the BytaFont app and installing TypoSlabserif.