Yeah it's their oc, they can make their oc how they want, it's their creation, not yours, theirs, and if you have a problem with that then idk what to tell you but don't just say something out loud, it's their oc which means they have the freedom to anything they want with it, whether it's a design change, or what they do, or maybe even their personality or what they like, you can't change their oc whether you like it or not.

Younhave ❌️ You have ✅️

They can make it how they want to bro they can have light brown face its not your oc its theirs