She has maroon hair with a bow in it, has tan skin and big lips resembling a duck bill. She wears glasses, a yellow dress with a pink heart on it, light yellow socks and black shoes.
She could possibly be related to Reed, due to the resemblance they share with each other.
In "Classroom" it's revealed that Coco has a crush on Brady, as she's shown reading a book and imagining herself and Brady in the story, falling in love. This trait continued in "Plant Daddies" and "Talent Show".
Because of her appearance it is possible to say that Coco was based off the McDonald's character, Birdie the Early Bird.