They have little bumps on their legs and their combs are kinda pink ....Im just making sure because sometimes they'll sneak a roo on ya in the pullet cage
Almost all chicks will have spur bumps. I've even had some hens grow 2 1/2 inch wicked sharp spurs. The combs don't look overly pink to me (that could be the lighting). The barred Rock seems to be feathering in darker like a pullet would. Try to get some individual pics - straight on side and head shots would help.