The Australian standard does differ from the APS. The tail in Australia is meant to be 'full and compact'.Beautiful birds. I'm not a breeder of Orpingtons or Australorps, but have a novice observation. Looking at the artwork in the APA SOP, the tails on these pullets look more Orpington than Australorp. Maybe it's their youth or the Aussie standard. ?
If you think my birds are impressive wait until you see the father and the Aunt to my two pullets. Now they are a sight. If you want to see them just PM and I will send you a link to another forum with the pics on it. (Not allowed to post links to other forums on byc) They are amazing. I have seen them in real life and they are stunning.