DNA test gone wrong???

So my dog got her DNA results back (DNAmydog (christmas gift (i tried to get embark as the gift))) and i am baffled by two of the breeds. I knew from the moment i saw her photo she was mixed with pyr and that came back at 56%, i assumed the other % would be lab and maybe a few other breeds since she is smaller and more lab presenting. but no it came back with 26% Great Dane & 18% Giant Schnauzer, which logically those are all HUGE dogs and my girl is the size of a lab (~22-23" & 50lbs). (photos of my dog, second photo are the results) does anyone else find these wrong or has this company revamped and got accurate within the last year?