MMM does consider Cochins exotic, so I think you're right there. He's going to be a stunning boy when he matures!
My Faverolles rooster is also very calm, almost to the point of "I wonder if he's normal" He's so huge, though! The hen that came with him was called Fluffy, so we named the...
Well, that Faverolles rooster is going to be a long, long wait before he lays
Other than that, your Wyandottes really look pretty close. The others don't look as mature, but the two slw and the one glw all look literally ready to lay any day now. Putting golf balls, etc in the nest can help...