LCsAChickenLover
Songster
I agree with 1,4 and 7 looking like pulletsThose three look pretty roo-ish, especially the second and third. Comb's quite large on the first, also. I'm not sure the chick in the second pic is the same as the one in your original pic #4? Feet look a bit different, and the comb is much bigger.
In your original photos, I would say 1, 4, and 7 look like they might be pullets. What does #5 look like now? The dark one that looks like it may have a pea comb?