Could you get a better side view picture? They are to young to say for sure though. Also your "Australorp" looks like a Barred Rock (which looks like a pullet).
I will get a better picture. Hmmmmm... she looks just like our other australorpe did... hoping that's what she is as that's what we ordered! Guess time will tell! Thanks... I'll get that photo.
The black and white one is the one you are calling an Australorp correct? Black Australorps should be solid black (but as they are growing feathers in their chest will be white).