The Gatekeeper by @Sevian (Michael)
Certain doors aren't intended to be opened.. That which lies behind should remain locked within, not to be unleashed by any brave or ignorant soul. Here The Gatekeeper is a most fierce guardian of such a realm. He desires escape, yet knows his place is within.
Now I love this creatures design, the detailing in the scales of the Gatekeeper is amazing and I love the spines along the back and along the back of the jaw. It gives this particular creatures a look of being organic and metal at the same time. The muscular definition is detailed wonderfully and you have a wonderful knack for textures.