Undertale OC: Rio's Nicknames

I chose some ocs I thought were interesting or cute and stashed them in a situation where Rio gives everyone a nickname. It's his signature specialty. Of course I will be doodling more people's OCs soon. If I butchered your character's personality from their facial expressions, let me know.

Characters belong to:
Ace (c) putt125
Gloom (c) iLiekSkittlez
Noah (c) nocturnefox
Lita c) CinnamonBani