No combs or wattles on any, I was seeing that red one wrong. It’s still too early to tell and the legs in the first photos concern me some, but I feel better about them at least having a chance to being pullets. One early clue to them being male is red comb and wattles compared to pale combs...
There are still right in that age it’s hard to be sure. You may have another week or more to go to be more certain, but I’ll give a guess.
The first one looks like it could be a pullet. A close-up of the head showing wattles more than comb could help. I can’t see them that well. The legs...