Llevar coletas - Peinados

[ROBINDESBOIS]

How do we say " llevar coletas " in the following context - In this picture my niece lleva coletas "? It refers to the way she is combed.

[Perikles]

How do we say " llevar coletas " in the following context - In this picture my niece lleva coletas "? It refers to the way she is combed.my niece is wearing a ponytail (just one)
my niece is wearing pigtails (two)
my niece is wearing her hair in braids (several)

[ROBINDESBOIS]

and if she is wearing a moño, how can I say that ?
He is wearing a bun or her hair is in a bun.?

[Perikles]

and if she is wearing a moño, how can I say that ?
He is wearing a bun or her hair is in a bun.?She has her hair in a bun.