Bo and Bandi.
They're really quite similar but they have a couple things about them that help them stand out from each other.

Bandi has the black paws and feet and small patches around her eyes.
Bo has black tips on his ears and large patches around his eyes.

They're built a bit differently as well but that's to be expected. They're actually about the same height but for whatever reason Bandi came out looking taller. hrm.

Sketched then scanned and Colored in Gimp.