Yep. That's what I'm talking about with the wings. It might also happen with males competing for a female. I'm not 100% sure.
I like to try and selective breed for larger females. Feed off the tiny females, once they really get going you'll see what I'm talking about. The lighter colors might just be ones who have molted in the last couple of days, darker ones going into a molt. There are some that look a little different but I'm not sure how their genetics really work with that.
Is that a male or female? My understanding was they get about 6"-7" (DLS)