The females don't have a penciled pattern though. they keep those tiny little red zigzag bars on their wings.It's not mottling, itls clearly the effect of the pattern gene, Melanotic and Db.. Just search for "Golden Penciled Hamburg" Yours are the same but with Khaki or a similar black feather diluter that is turning the black feathers to a khaki color.
Females will have a Penciling pattern, males will have many spangles on the breasts(Normal feathered males, hen feathered males will have penciling)