Kasama Lego (AKA ka.lego) keeps pulling me in with these great custom designs. His latest, The Mecha Huntress, uses some form of digital witchcraft to pull off that epic hair piece (is that the Series 3 Elf hair?!). Still inspired by the works of Jack Kirby, you could easily see this lady taking on Barda or Granny's Furies on Apokolips.
There's a great variant of this figure in a flight suit (how else are you going to smack those mecha in the mouth) which you can see on Kasama's Flickr stream.