Good ink drawing, but I think you need some kind of a background for this.
You've worked up an interesting style here. The only things I would say that don't seem purposefully done is that the bicep of the front arm is too long. Forearms are longer than biceps. And the lower legs are too straight and streamlined. The calf muscle should be just a tad more defined, the leg should curve more gradually into the heel and the feet should be in perspective, since the emphasis seems to be on perspective for the rest of the pic. The crease of the knee should just be a line, you don't really need the little "C"s, though I can appreciate your eye for detail, you don't rly need them in this case.
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