I while checking some stuff, I found the next images.
I know, that was discovered some many years. but I don't look nobody that talked about that.
I thinking that this unknown black man was intended for be the boss for picture city. the dark scenario looks like a darkness theater, and some cabin boys looks like black people but has purple skin.
I do observations to the sprite of the female Rayman from the Super NES prototype, the symbol on body of the girl looks actually like some two small circles, unlike Rayman that he have one big circle like a ring.
I thinking that may it's represent a esthetic way for representing the cooperative mode.
The Rayman's symbol it's a big ring the representing player 1 while the girl's symbol it's two smaller circles representing the player 2.
In some arcade games with cooperative mode like Contra, the players usually use two colors, red and blue like originally happened in the Super NES prototype.
Remember, The combination of red and blue it's purple.