What breed is she? Adopted puppy, 4mo

We adopted Stella early December. The shelter said that she is a terrier mix and we are planning to do a DNA test. I am dropping it in the mail today, but curious what you all think before we get results back. Of the litter, she was the most unique looking (5th picture shows her with a sibling). She has more of a hair-like coat and is starting to get more spots.