She is certainly a cute pup and as Luvmiboxer said she will make a wonderful pet. To me her face/head does not look boxer at all, but it could be the photo angle too. I would guess that another dog could have also mated with the mama, and hence some of the litter may be all boxer while others not.
She is a wonderful pup and I don't mind if she's not full. I thought the same thing about her head/about. She has a longer nose and doesn't have the typical square head. Thanks for the welcome and opinions!