Question about ethnic babies

they make me nervous, lol. As it is, while I’m working on caucasion babies, I’m constantly going over in my head if what I’m doing could be realistic for the skin tone I’m used to, lol. But I SO badly want to branch out and TRY at least. What skin color do you use, when painting a bi-racial baby? And lip color, and what kind of mohair? Curly I would assume, then wet it and style it? I don’t know if I could ever pull one off or not, but I do believe my sells may increase too, as I’ve been asked if I could do ethnic babies. I have so many questions though. Course I guess I had a ton when I started out all too, couldn’t be too much harder could it?