Love the shading
This was like some form of rock like robot here, you have some "INTENSE-SHADING" here on this one, makes it even look like some sort of "ROCK" like look here, Some of those shades might even look pretty intense with some added color, overall this was just some really nice work and a nice robot like character, so keep doing what you do best, this was an intense visual and I have enjoyed reviewing it.
~~THINGS TO IMPROVE ON~~
Some added color would look really good on this.
~X~