This is Brackenpelt, a character from my NaNoWriMo story. She's a creature known as a Wirrsa - a canine/feline hybrid. In this case, she is a lion/jackal mix.
Brackenpelt is one of the eldest females of the pack, having seen the rise and fall of the previous Alphas. She makes it her job to be a task master for the adolescents in the pack and is quite good at it.