And, if it doesn't give you the impression it can adequately perform the work this breed was designed for, it also lacks type. They should not look as if a stiff breeze can lift them off their feet nor should they be heavy. Heads are of a distinctive shape. Old breed standards once referred to the head as being fox-like. While this analogy is good and refers to the skull being much wider than the muzzle, it does not mean that the muzzle should come to a fine point.
Many fine muzzles lack strength of underjaw.
Lips should be tight fitting - loose lips allow freezing air to enter the mouth. None of these is to be more favoured than any other. No particular variety is any more rare or valuable than any other. This is a little known point. What we are referring to here is the height of the muscle, between the shoulder blades, which covers the spine.