hey Yokubo you might have seen this already, but just in case I wanted to show you this cool plug in for ANIMATING the characters while they talk! XD (like mouth moving, or other small -or big- actions you may choose to add during their dialogues)
https://forums.rpgmakerweb.com/index.php?threads/animated-busts-and-picture-base...
If you think its feasible it would be so cool to implement some thing similar in the game sometime in the future!! The maker seems to present this as relatively simple to implement, as well as the other users on the forum in comparison to other methods and its supposed to be significantly better which was why i wanted to show you in case you haven't seen it already