I looked at them again and maybe I was wrong about the first one. It's kind of hard to tell, but maybe that one's a pullet. I still feel pretty sure the other's a roo.
My Polish chicks are just a tiny bit younger than yours and the ones I think are pullets have no red above their beaks at all. The 2 roos that I have are pretty obvious already. I could be wrong about mine, also. I need to take pix of them and post them to get some help myself, but it's almost midnight here and I'm about to go to bed.