Rebornfx question? 🤔

I have a sorta hypothetical question for fellow rebornfx users. For those of yous who have mastered AA/biracial/dark skin, was it really hard to learn verses caucasian? I’m starting to get the hang of caucasian and might be interested in trying dark skin soon. I take a while to learn though so I want to know what I’m getting myself into first lol. Also what colors do you use and can I see pictures?

Shadows/darker zones are the most difficult. And having a smooth skin tone. I have done a few AA babies but I am still not really confident.
I use primary color method with Coastal scents powders, using the SueEllen Patreon’s.