I have nothing but respect for you.Flaws are the result of an intention to leap as far off the rubber as possible. Fixing this is difficult because she's going to feel like she's dialing back her velocity, which she is but only temporarily. I would cut her stride way back, have her do what I call 'mini leaps' with a jump back after landing. A pitcher needs to go from leaning forward at launch to leaning back at landing. Good luck this is a tough one to fix.
My thought is that she should do walk-throughs to get the running forward after the pitch under control. Right now, her lower body is so messed up it's hard to get a good feel for what to teach next.