In the first picture it looks like there's two roos in the background but all the other pics look like girlies to me. Picture number 11 looks like you have a couple hens who's combs are turning so they should be laying any minute.
Oh, and you have some very pretty Aussies by the way. Where did you get them? I crossed one of my black Aussies with my Easter Egger last year and the baby looks just like a regular Aussie but has the little chipmunk cheeks-she's gorgeous!
I sure hope they start laying soon, but I'm thinking maybe they are a little younger than 26 weeks. I would think they would have a much larger comb and wattles at this age. I'm thinking maybe 23-24 weeks.