[Influence] Ultimate Sweetie Belle (effects analysis)

This analysis isn't so much about animation, but subtle effects I could add to my own work. Seeing as Antique (one of my characters who is a talking clock) have no mouths to animate, certain shots may make it difficult to establish who is talking, so I may take inspiration from this video by mapping glow effects to the sound files associated with his character.
See the video below to get an idea, look at the eyes: