D00d!
Do it dood, this is great, this is very detailed in the character desing, but why is this not digital? I do not see much paper work from you, but it would appear to be an all paper drawing and work that isn't done by computer. How did you go about this decision? I wonder, because you've been so digital in the past. The gear is amazing with your details and line work, but the body is very very off. The hand is so huge! But maybe he has a big hand? I think if you wanted to just show big gear, there is a way to do that, by making the gear seem a bit thicker and the hand doesn't get any smaller, that would have achived your effect much better in my eyes. The face seems a bit lost and the neck isn't really there. I think he should have a neck and the expression of this dude's face is a little barren, almost emotionaless. I'd add more emotion to the face and give a neck to boot. I think color would also benefit in this piece to show off the different type of armour and maybe a background as well, but for a doodle of a dude, this was just fine.
~~THINGS TO IMPROVE ON~~
Add a background, add color, work on the size of his hand, work on his facial expressions, and maybe more of a neck for this dude, dude.
~X~