Too young.
when you repost pictures around 8-12 weeks old, you should post pic of the ones in question from the side, while they are standing. This allows the feather pattern to be seen, the stance/posture, the legs (color and size), and tail development. Also, in same or an additional picture, have a good pic of comb and wattles. Often a good sense of male/female can be seen by 8 weeks, but sometimes need to wait for saddle feathers to come in around 12 weeks.