I really like the photo of the chihuahua (mix?), looking like it thinks it might somehow be in charge of Ghost. And Ghost, with the expression like "Um, really?"
So, did you find that the two dogs seemed to recognize that they were the same breed (interact more exclusively with eachother than other dogs at the park)? I have noticed (even with my own dogs, in my own pack), that my CSVs seem to be able to pick eachother out, and will often just ignore dogs of other breeds - like a CSV only club! But maybe it's only a fluke...