Nothing is looking too male about them to me. 6 weeks is still a tad early to tell for sure. Some pics of them stood up would be great to see how their tail is set. Are there any wattles developing on your first one? I can't quite see from the pic angle.
I agree too, i have the same kind of polish. all the ones on the pics so far look like pullets to me. I have 5 week olds, and I dont find that it's so hard to tell if it's pullet or roo, and these are almost no doubt about it pullets