Could we have a close up of their combs please? Rn I am thinking one pullet one cockerel, but I could be wrong not being able to see their comb development
Of the 2 that look similar, the one in picture 1 of your second post looks like a cockerel to me. And the one in the last two pictures with the eye makeup also looks like a cockerel.
I have some barnyard mixes and Easter egger chicks that look the same but someone else might be able to answer your question regarding breeds. When it comes to sexing, you never know (for certain) until they crow.