Hi. I am fairly new to chickens, but my barred rocks look just like your black & white one. Also, I have 4 Arauccana chickens (3 hens and 1 roo) and my hens look very much like your other chicken. Araucanas have a pea comb and come in all different color patterns apparently. My girls all look like each other, but the roo is very different. They all have a "fuzzy" face though. Kinda like fuzzy checks if you know what I mean. However, mine have darker legs. Anyway, just my guess, but yours sure looks a lot like my girls. Wish my USB port wasn't busted so I could take a pic and show you.
Good luck!