The way it works in judging is that points are lost for faults. So a neat, fairly rounded bib with no colour through it will get more points than an irregular bib with rough edges. But the rough bib may be compensated for by good body shape, or the right number of white flight feathers. We focus on bibs because they are a very noticeable feature, but type (body and head shape) is really the most important. Everything matters, but it's the whole package, not just one feature.
Some faults are worse than others of course. In Swedish, a narrow bird with a Runner-like head would be bad. A massive bib that went all the way up the neck or round the back of the neck is bad.
With your birds - they have good type in the bodies. Bibs are solid white (good) but are a bit of an irregular shape in some. Some of your heads could be a little better - with the bill coming out a bit straighter from the head rather than forming a continuous line with the forehead. But you definitely have showable birds. I'd be breeding from them. Look for a male with a good, oval shaped head.
No bird is perfect. But we aim towards it. That's what make it all a worthwhile challenge.
The Australian Standards are a little bit different to the American, by the way, e.g. no mention of a green sheen allowed on the drake's head. Also no mention of any part of the wing being darker.