yep, looks mottled, she is pretty
I have a mottled bird that didn't look very mottled the first year, after the winter her new feathers came in and she looks totally different.
I you sure it's a hen? I have this happen with my roos, the color "bleeds" through. As far as I know it doesn't happen with the hens so much, at least that has been my experience....
eta- forgot about the mottled cochin.....
can you post a pic?