I don't see much of a gap in that last photo. (The little "hole" in the front is always there, that's where they stick their tongue out.) If she's recent WC and she's been that way since you got her, it could be she had previous trauma (e.g. broken jaw) that's just healed a little wonky. Best to get someone with experience to look at her, obviously. But if you can get a good look in her mouth and you don't see an open sore, swelling, or any foreign objects, AND she's eating OK and has a normal attitude, it probably wouldn't be wrong to just take a bit of a "wait and see" with her.

I would suggest, though, if you do wait and see, that you start up a little "medical chart" for her - record everything she eats and how easily she takes prey, observe her attitude twice a day, try to get a weight every couple days, etc. It takes snakes so long to deteriorate, it's easy to think everything's going OK and then suddenly realize one day that you've got a very sick snake. If you're keeping a detailed record it's easier to notice a downward trend early on and get her to a vet if she needs it.