What's there to say at this point? The piece is still in its infancy and there isn't a lot of critique to offer at this point besides the base lineart. his right bicep seems a bit small, and his forearms have that "popeyesque" look to them (really fat compared to biceps), and his left wrist looks broken and could probably do with a straightening.
When you start colouring, then it will be easier to offer in depth critique.