These are the custom files that Justice uses for Rebelle 7 Pro. Please follow the instructions in the video to add this content to your copy of Rebelle 7 or Rebelle 7 Pro.
Brushes can be added to your library by opening the inside Rebelle Help menu - "show library folder" - brushes - favorites - default and paste your new "Spirits - Whisps - Crawlers and Shadows 1.0*" pack into there.