I'm certainly no expert, but the earlier pics look almost exactly like two of my Easter Eggers when I first got them about a week ago. Mine still haven't feathered out, so I can't make a comparison to the more recent photos yet.
Here's a close up of the one at 4.5 weeks. The other one is too fast. I cant get a good picture of it. It looks almost identical though except it has a single comb and no feathers or whatever around the comb.