This is so AWESOME!!! XD The detail you've put into this is absuletely amazing; the anatomy is dang accurate, the machinery is bad-ass, the shading is epic and I love the dramaticness of all the details and shapes. He seems almost a mixture between rag-doll science and the Quake Strogg machinery and weaponry. I also like how you used pipes instead of horns and one eye being binocular technology.
Flippin' scary and epic.
Awesome sketch. X3