Mix Pacifica and eOS - ELEMENTARY icon theme
Source (required if based on other people's work):
its a mix of Pacifica icon theme with standard elementary icon theme.
you can find the pacifica icon theme original author page on deviantart
i uploaded the wallpaper and you can find here searching Galaxy Wallpaper
this icon theme was build and tested ONLY on elementary OS Freya. I dont know if works with another...
I personally like the taste of Paper GTK theme.