Your brown and white does look like she's about 1/2 boer, maybe the other half is Nigi. The solid white isn't a Pygmy color, so she's probably a Nigerian or cross thereof. I can't see her well enough to know for sure.
They are adorable! Flights of Fancy, if she ever comes online here...has a Boer/ND cross out of one of my does and it sounds like the personalities are identical haha.