You always say that you're drawings are bad and it gives me the impression that it IS bad, but it is not!!! You've been misleading!!!
I think it looks good.
I have a suggestion, not so much CC though (because I'm not good with charcoals myself). How about some more high lights on the shirt? Like these bits:
You can try and "rub" out some bits to high light it so the high lighted bits are actually white, and not shaded. I think that will help with the lighting intensity. But then again, the photo is kind of blurry so maybe you've already made them white but I just did not see them! xDD