Male-> Horse TF Commission - WhiteFlameK (Patreon)

A vlogging hiker discovers a rumored ancient burial mound and disturbs the rest of an angry goddess by walking up the mound. As punishment, she molds his body and ultimately his mind into a beast to begin her long dormant war against the invaders that conquered her lands...

 http://www.furaffinity.net/user/whiteflamek/ - check out his stuff, he's awesome!