See, here is some of my qaib "Hmong" or Hmong chickens. these are all of this hens offsprings except one of the brown striped ones, one of them belongs to a half asil half hmong hen and a main asil rooster. but they all come out similar to yours.
This may be a really late reply, but breeding these birds that I have, usually 2-4 of the batch come out like the chick you have in the bottom.. I'm not even sure what my own chickens are but looking through the internet, it may be Ayam Cemani with the Menolosis genetic trait (causing black...