The tutorial has you use a linear gradient as a starting point. In order to get the hoops, I used a double circular gradient. For the teraport “grab” effect seen in panel 5 (3rd row, 1st panel) I hand-painted the gradient with a big ol’ airbrush.
The long and short of it — it took a little practice, but I now control the lightning. Yes, that’s right, I totally pwn3d Thor.