Black horse

I fail at horse anatomy, criticism would be welcomed.

This is Cadeyrn, who owned by Rooke and its his main mode of transportation. 

You cant see here, but Cadeyrn is very thin and sickly looking, Rooke tried to put it down by lethal injection, then by cutting open the main artery in its neck, but the horse refuses to die. 

This horse is very poorly tempered, it kicks and bites anyone who goes near it. 

Cadeyrn (c) me