This is a truly stylistic drawing! My only complaint is that the design of the head isn't that good. It's still really fun to look at. The best part is the lower half of his body. Those look like holdings for ammunition. I don't know what those things are called.
I also love the name. It's great that you did this drawing for a friend. You really showed devotion in it. The dark atmosphere works so well. I just now noticed the little lights.