The size of the comb doesn't matter when they are of laying age. All those other things aren't reliable at all. I had silkie hens with streamers, and they were from a hatchery.Streamers, size of comb, color, and sheen of feathers. Not to mention that upright stance in the first pic. I have several different qualities of silkies in my flock. Some hens are hatchery quality with a swoop crest but no streamers.

and as much as I think of getting some, still haven't. No clue why "feather footed" is an issue for me, think it's our wet climate, gets awfully muddy when it rains for weeks & sometimes months 