First, nice little update, showing the relationship dynamic between MC and Ayana.
They're black. Most characters in the game are except for a few. Confusing I know, that's mostly my fault for some conflicting design choices, but Ayana is black or Caribbean American and the MC is also black (along with his sister). MC and Charlotte are just very light-skinned (the blue eyes was probably a mistake but blue eyes made Charlotte pop out more to me, that's why I went with them.) The problem is it's causing more confusion than anything else. But it's too late to change honestly.
I'd say just think of Michael Ealy or the Hodgetwins lol. There are some exceptions to the norm for sure.
On the characters ethnic background topic. Personally, i like that Connected can be used as an example for other games here that models & renders of Black (or Black-Mixed) characters don't always have to be dark-brown skin (example: Michael Jordan, Denzel Washington). For characters MC, Charlotte & Ayana being ambiguously brown, i think of lighter-brown skinned & brown skinned Black people, like Stephen Curry and Zendaya to Rihanna, Dwayne "The Rock" Johnson and Will Smith to add examples of various shades.
As you said in your other comment, there's always that confusion and genuine curiosity about mixed people and their ethnic background so it works in that favor. There's also those that favor one parent's genetic appearance over the other (example:
You must be registered to see the links
(Half-Korean/Half-Black)).
Also like that your characters aren't the stereotypical portrayed Blacks, like hairstyle-wise nothing but afros, dreads,
You must be registered to see the links
or speaking in complete hardcore slang, a rapper or hoodlum (nothing wrong with those, but those are likely the first to come to mind). Or in porn logic just their for cuckolding people.
Or one idea is you can just sum it up and say it's set in your own world with it's own version & twist on humans.
I mentioned this before, but I say it’s funny cause people tend to confuse me and my dad for Spanish speaking as well.
Comedian Trevor Noah (South African/Swiss) told a story of coming to America and getting mistaken as hispanic.