Still working on the Cackle Mystery chicks

I have two like the first pics - these were not obvious polish but have suddenly sprouted funny little crests, much like my cream legbars did last year. But the coloring is black and white/ silver. Maybe a silver laced polish? But why the sudden crest and not the poof the others had from the beginning?
The second - I have no idea. It's not a color pattern I am familiar with. She is very friendly and nosy (so probably a he!!) but hates the camera so all my photos are of her running away

Thank you for the help!