This rig Is the result of the RIGIFY course I've been teaching on youtube, https://www.youtube.com/playlist?list=PLowasMviFd8AdzQHiH-gJPxEwN_Chjv0b.

Also I'm making it available if you want to follow o my new series called BLENDER ANIMATION WORKFLOWS here: https://www.youtube.com/playlist?list=PLowasMviFd8D18BsQ4kOcb2vXw3dd3eT8