This is a custom of a made up Green Lantern character as near as I can tell. I'm not sure what her name would be so I named her Catrice. She adds bulk to the GL shelf and is a good quality custom.
A Custom A Day....
I began toy collecting as a hobby back in 1990 I have always had a
need for custom figures. Toy companies begin action figure lines, begin
to release individual characters to create teams and, more often than
not leave them incomplete. Many collectors find that custom figures
pollute their collection's authenticity by not being mass produced
creations from the toy companies that created the preexisting toy lines.
I disagree. I feel a quality custom action figure enhances a
collection and help create a complete picture.