This is the worst case scenario, but it is workable, due to Google having hundreds of images of dogs that resemble yours just in case the image you have is missing a leg or the top of the dog's head etc.
Seriously, if you think you might want to commission a painting of your dog (or your wife, or your cat), at some future date, take a nicely lit photo of the subject outside in the shade.
This is a Labradoodle, I think. Maybe a Goldendoodle. He didn't really say. But I liked working life size.
16" x 20"
Oil on canvas