Ok so I decided to decrease the pupil size and see if that looks more like the real dog. And it did! I also lowered the forehead ala Velocity's OP and tinkered with the ears. I didn't want to follow velocity's body modifications because I felt the reduction in body mass made his dog look like a puppy. I also played around with the ears, and further darkened the hair around the snout.
Finally, I received a terribly fuzzy photo of the dog's eye, and it appeared to have a light grey/bluish eyelid on the bottom of it so I made versions with the eyelid.
New eyes with new eyelids
New eyes without eyelids
Old eyes with eyelids
Old eyes without eyelids