Male offspring would only be Barred if you cross a solid rooster to a Barred hen.I have some at home I can get photos of you for later today.
That is incorrect. Males should be barred if you do the cross in a manner that allows you to produce Olive-egger Sex-links, which is the entire point. Males are barred. Hens are Black with varying amounts of copper in the hackles. Most of mine have light feathering on the shanks and outer toes which is typical if using Black Copper Marans that follow the French versus the UK Standard. Crest size varies. Some have decent little poofs up top, and some don't.
This also shouldn't hold true. The females should only lay a green egg. Mine vary from a deep green to a pale green. Some have speckles.