For a second I thought this was about this DC hero, Cyborg (potential for GAU). From the eyes it looks like this could be Cyber Smoke, especially when this reminds of Cyber Sub-Zero who is supposed to wear the suit that Smoke would've probably ended up wearing once automated. Artistically I can say that you drew the right foot pretty well even though it looks slightly twisted. He needs a bigger chest for all the shurikens. Hands aren't clearly your thing – try to practise them for the next art. Before that, I'd like to see this one colored though. Cyber Smoke, anybody?4/5 ₯
It's good, really good. It looks like the details are more noticeable in this one; the lines seem darker and less faded (which is good) compared to some of your earlier submissions from what I remember. And the shading is also nicely done.
As for proportion, it looks good for the most part, although I do agree that the right leg is a little short from the knee to the foot. I can't see anything wrong with the hands except they're not too detailed (which isn't actually a problem; there doesn't have to be a lot going on with the hands). I actually like the smaller chest for this character; it makes him look a lot sleeker and more mobile than the cyborgs in MK, kind of like a version 2.0.
I know you're not trying to make a cyborg from any of the games in the series, but I think he'd look like Cyber-smoke with a purple and black color scheme. I could be wrong though. Are you going to post the colored version?
Oh, and my rating is 4.5, rounded up to a five, by the way.