As a heads up, feeding photos are a nono here.
You don’t have any info on the snake’s parentage?
The bottom photo looks to be your snake in shed and the lighting and view of the snake isn’t very good in the other photos. Pastel fire can be likely, but we need better photos of the full snake, out of shed and in better lighting to really tell anything else.
The easiest way to ID ghost is when they shed, a ghost won’t have any pattern on the shed. it will just be clear.
If the breeder sold her as a pastel ghost then I would be inclined to believe them.
If there was fire in the pairing, it could be possible, but more likely she’s just a nice quality pastel hypo.
You can have her shed tested for all 3 of those genes if you still want verification.
And since feeding pics are not allowed I would also delete the ones with the mouse in there as well.