Well, even though I am probably one of the greener ones in this breed I wanted to chime in,
The standard is vague when it comes to muzzle length--the "not too long" wording leaves it up for interpretation (ie. whatever the judges preference is). I think our best source is referring back to the illustrated supplemental standard which depicts the muzzle in relation to the head. In my own mind "not too long" means terrier but not as long as a silky--but again thats my own interpretation. I think the photo of your girl depicts a beautiful muzzle--it is not too long and it is perfectly perpendicular to the head. Its funny because our written standard does not address down-faced dogs or muzzle placement but the supplemental illustrated standard does.
As far as body goes, I have heard the word "cobby" being used by old-timers and by judges very familiar with the breed. The breed is not supposed to have a deep chest and narrow loin, as say a Doberman, but are supposed to be solid from chest to loin. Again this is in the illustrated standard.
I agree the boy in your photo is really on the thin side. I dont know that breeders intentionally try to keep their dogs thin--in my experience with my dog is that he just was not and still isn't a big eater. From about 13-20 months I was lucky to keep him at 5lbs which still made him look anorexic. Now that hes 2 he he still tends to stay on the slim side but at least he eats. My pup, on the other hand, is on a diet lol. I think it just has to do with maturity and the individual dog.
I have also seen dogs over 7lbs finish and if they have a lot to offer to the breed I dont think its an injustice. I do feel it is more acceptable to have a bitch slightly over the 7lb mark than a male. I havent yet seen a judge call for a scale lol but in our crazy world I wouldnt put it past one.
It is actually very disappointing when you really read the standard that is presented to judges versus the standard that the YTCA uses because I really feel that the written standard is so ambiguous. With the exception of color it could describe almost any small, prick-eared, long coated breed
