Not too early to tell on the dark one... he's a boy! No doubt with that big red comb, and the patchy pattern with red is more confirmation.
Too soon to tell for the other. The comb seems pretty prominent, but is still a peachy pullet color. Harder for me with single combs... some are big, some are small, so hard to know if it's a pullet that will end up with a huge Leghorn sized comb or perhaps a male. Watch the feather color. If the small ticking pattern continues to come in evenly, that's a pullet sign. Without wattles, all we have to watch for is the comb and the color pattern. They all look like pullets... until they don't!
Hope you post another update.