So this is where you started form.
Just wanted to let you know I saw this one AFTER I saw the one you did that was done with 2H, 2B and 6B.
I'll spare you the comments, and myself the effort of typing a critque because there's nothing I can say to help that you haven't already done. Or at least that's my opinon.
If you were just stating, that'd be different.
BTW, in response to what WooLFY said: I disagree that the "hair chin and neck" are not important. This is a self portrait done in a realistic style, and if those features are shown (how would you NOT show the hair and chin?) it's VERY important that they're done in the same caliber as the rest of the drawing. But I think you know that already.