Nice scorp congrats, nice pics, I know it's hard to capture the deep red in a photo. Looks like your right that it's a female from what I can see, if it's adult that is, it's hard to get a sense of it's size. In general the males tend to be a big bigger, their claws get larger, develop an indent and appear smoother.
Your set-ups looking good, she'll soon have her way with it. They're definitely a feisty species, you don't want a pinch from her! Shouldn't have any trouble taking down locusts.