Don't cut the hair away from the eyes... the fall of hair over dogs like this is the same as sun glasses to a human. And it's part of the dog. we have a bunch of Bouviers that are the same way... sometimes I get the eyes and sometimes I don't because the hair is over them. That's the nature of dog photographery, knowing what is natural for the dog you are shooting.
Besides motion blur (was it windy? That looks like hair movement blur as well), you have a short depth of field with the f5.6. You want a depth of field that will let you focus on the eyes (or where the eyes should be

) and get in focus from the ears to the tip of the nose. I like shooting at f11 to f13 but f8 will do for shorter focal lengths if you get the eyes in focus.
Cute dog. Sometimes it's better to leave a leash on a dog, paticularly outside if they aren't in an inclosed area. Keep in mind though if you shoot a well behaved dog, that not only take the leash off but also the collar... unless the collar is part of the personality of the dog... for instance a spike collar on a real tough looking dog. I usually try to take the collars off though. Watch out for dog tags too. You don't realize how much they ditract until you look at the image and see the light reflecting off of them.
You did get down to her level, which is good. Keep practicing. Dog portraits can be fun.
Mike