What is Benji's breed?

When we first adopted Benji from Waggytail Rescue, he was listed as a Westie mix. Which is believable because he does have a lot of similarities to a Westie, the light hair color, pointed ears, long hair. Still, out of curiosity, I wanted to know exactly what he was made of and any genetic history that might be helpful to know. To do so, I decided to look into dog DNA tests. I ended up finding Embark Vet DNA tests.