This is Jet Stream, the latest hot thing to hit the super world. The media are in a frenzy trying to get pictures and gossip on this teen idol, and she is certainly not shy of the limelight. She has a jet pack that her Daddy had made, and wields a pair of heavily modified Colts with awesome accuracy.
This figure is from the Hasslefree range. I used a back pack off a Grym (Sci-fi dwarf soldiers also by Hasslefree) and repositioned her head by sawing it off with a razor saw and pinning it back in situ. Sounds painful.