These pics really aren't the best views to judge from + 4-6 months, some puppies are starting to grow out every which way and they can be high in the rear this week and better next week...
The photos are taken from above + her coat is kinda "open" looking to me.
She seems balanced + nice bone.
Stacking tips -
*you want to bring her back feet back a step. Best way to tell she's right - back toes should be a straight line down from the butt bone. The way she's standing isn't bad, but it could make her look a little more hunched in back than she is + she's leaning back off her toes.
*front feet placement is fine (front toes straight line down from shoulders), but she's leaning back. It's a doggy slouch.
When you see people baiting the dogs in front, they are trying to get the dogs to strand up vs slouching.
Collar - needs to come off. That lighter area around her neck is damage from wearing collar.
If I were showing her, I'd want to give her a bath and get that topcoat to lay tight - you don't want her poofed out like a husky.
And then you would want to keep the collar off a month or more to give that area time to grow out again.
Beyond that, I think she's a cutie.
Other thing is a side comment and I don't mean it in a mean way, but you never replace good dogs.