take a good long look at her puppy photo! That is what she will mature back too!
Her next growth spurt will be her front, the legs will lengthen and that brisket will not be so deep, it will be where it was as in her puppy picture.
But it has been my observation over the years that what you see at birth and at around 7 weeks of age, you will see again at maturity!
She IS a nice bitch.