This is creature concept art for Of Shadow and Blood, a fairly new story I published not too long ago. It's a fantasy novel, and a fun one to write so far. Anyway, this is concept art for a creature called a Dioket, a resurrected horse. The Drenzian will change and bring back anything that dies within the ancient trees as shadow creatures like this.

Here's the drawing, sorry about the not-so-favorable lighting, I'm pretty proud of it: