I love Gaige! I can't wait to DL and play as her
I only have a few loose recommendations and a lot of her is probably going to be trying things and seeing if they work multiple times. Damn that game and it's strange character designs at times. =___= Like Hammerlock how in the hell could you even make him accurate?
This ref looks pretty accurate to me but just keep looking around.
The ponytail things you could probably do with some fabric secured in the middle with.. duct tape even. Gaige would wear something like that lol
Her hand you're probably best off basing it off of armor with like a spandex glove base.