Anyone know what a Black Mottled Houdan rooster crossed with a Isabel orpington hen would look like?

[Rooka_2]

I have a giant 1 acre pen with all my chickens just mixed in there. Lately I've noticed my black mottled Houdan rooster has taken quite the liking for my isabel orpington hens. I'm just curious if anyone knows what those babies would possibly look like? My orpingtons are not even laying yet, they're only 6 months old, but he seems to have taken on the roll of their mister.

 

[RoostersAreAwesome]

They’ll be black, possibly with some gold leakage. They will carry mottling and lavender but won’t show it in the first generation since those genes are recessive. They’ll also have crests and could have extra toes.