[remic20]

can you help me spot the flaws of the body structure..
or advice me more about armor and weapon?

[Ian Jones]

Tehre are some good shapes in there, but the most glaring problem is the left arm... the foreshortening is not correct. You need to redraw that area, perhaps try thinking of the arm as simpler shapes to get the perspective and proportion right first before defining muscles. Another area which looks wrong is the right shoulder, the neck muscle there... no idea what its called but its way bigger than the left one and makes him look wonky. There are a few more anatomy issues but I'll let someone more experienced suggest how to fix them. I hope that helps.