As far I saw, for now there's no variables to track what choices you made, nor a "corruption meter".
So, simply removing the choices will do, but if he still want us to know what choices we will have in the future, it should show somehow.
As for the characters faces, forget it. Even at this point of the game, way too much work.My only complaint is regarding Isabella, could have been dressed with less revealing clothes. Because talking about "real students/adult", have you ever seen a teacher dressed like that?