What you are describing is what our Light brahmas looked like last year from TSC. Of note is that I was completely new to chickens, and they had the "White Plymouth Rock" sign up on the bin and the guy was talking to my boys at Pilgrims (preschoolers so they were clueless, but it was cute). Anyway, I got home and started looking up plymouth rocks and realized they don't have feathered feet nor do they grow out black feather tips. It took us a couple of weeks to realize we had brahmas, but it was no big deal to us. So, I think your description is dead on. They are fun birds, mine constantly have a "funny" look about them, always questioning in my opinion, very big babies they are!