Pluma has pale blue skin and usually keeps her eyes shut, worn with glasses. She has short, fluffy aqua-colored hair with a feathery, glittering strand on either side of the head, which matches her wings.
She wears an aqua outfit with three diamonds designed in the middle, along with a white frilly collar and aqua shoes with a white ring around the top.
Calm, observant, and wise, Pluma loves to learn more about the world exploring every single detail about every single thing. While she is always spot-on with advice, she is awfully chatty and may accidentally put others to sleep without even realizing it.
- She is one of two Glimmies to wear glasses, the other being Flayla.
- She is also one of the only two Glimmie to keep their eyes closed in official art, the other being Siestina.
- Her name is based on the word Plumage, which is a term for describing feather sections.