Very nice! I like the 4th version the most (burnt orange bg). Very nice blending and smudging. ^_^ Great focul as well. Really like this piece, Great work. The lil' double purple thing on the right side looks odd. Maybe just one. idk, lol. Awesome job.
There's two dots around her right eyes that suck... Beside that, the blending is purely awesome and the deap perfect. Keep it up!
I actually prefer the first one out of them all. Only thing I don't like is the text on her throat. Good job though.