Well, let's see if I can remember what I did...
The green swirl:
I followed a tutorial online to make a starburst in photoshop (google that and you should come up with it)... it basically looked like this:*. It was black and white.
Then I imported that into AE, futzed with the colors to get the green, and applied one of the ripple effects to it to get it to swirl out. I made an identical rippling starburst at 50% opacity (or I may have changed the transfer mode to screen), but tweaked the ripple effect so that it was basically reversed (ie: still appears to ripple outward, but the ripples themselves are curved the opposite direction).
Finally, I made a subtract mask in the shape of Leota's head (which was on the layer below the green(s)), and a circular add mask (heavily feathered) around the whole thing, making sure no green reached the edges.
Leota's stabilization was a bit more trial and error. I used the motion tracking feature in AE (that's AE 7-- if you have AE CS4, it's in a separate application) to lock onto two or three points on her face (corners and areas of stark contrast tend to work best), then applied that tracking data as stabilization to the layer.
I think that's about all I did (aside from scaling it down appropriately, which took I lot of math that I've since forgotten). Again, if I need to clear something up, let me know. I'm happy to help.