Fiery Warhorse

It seems to be the Fiery warhorse, its got the fangs and horn

You would be incorrect. This is indeed the Fiery Warhorse. It has a red saddle and garb where as the Headless Horseman's mount has a blue saddle and garb.

This is definitely the Fiery Warhorse, I was on mine standing next to the Headless Horseman mount. Easy way to tell is the red trim on brown, instead of the green trim on purple. Look at the points of the blanket under the saddle on this shot vs. the pic on the Headless Horseman mount page and you'll see what I mean, also the mask on the horse is brown on the fiery and purple on the HH mount. And the previous poster is correct the Fiery has fangs where the HH does not.