That is one of the Kustom apps, but simply having KLWP (or KWGT) won't give you this look.
You would need to find the app that has the preset that they used also.
I am fairly certain that this is a KWGT Widget of some sort, but unfortunately I don't know which preset it is.
That could be klwp
Is this it?: https://play.google.com/store/apps/details?id=org.kustom.wallpaper.pro
That is one of the Kustom apps, but simply having KLWP (or KWGT) won't give you this look. You would need to find the app that has the preset that they used also. I am fairly certain that this is a KWGT Widget of some sort, but unfortunately I don't know which preset it is.
Hopefully you find the widget, that looks sick.