Just a collection of pics, if I can figure out how to load them all. The kissing photo includes her bff, Darwin, a lab-springer spaniel who is 6 mos. older than her. Actually, she's his puppy.
I can see why someone would think there was Terrier, but I'm not so sure about Basenji. (The only way to know for sure is to do a DNA test.) Both of your dogs look very similar. What breed, or mix, is the older one?
@mvdperez - Not all Basenjis have a freckled belly. I have been in the breed for 25+ years and had a number of Basenjis with no freckled belly. That said in the pictures of her posted you can see the mottled skin under the white hair....