Hiya, welcome to WC.
I guess since you posted this in illustration and not in the drawing forum, that you want this portrait to have an illustration look?
It is bordering on the real side, which is cool, I'm not sure what sort of critique you want... It all looks pretty cool to me, only her lips and chin look a little off... I think her bottom lip may be a bit big, but I can't really say without the reference of course.
I think you have smudged (with either a finger or stump) which I normally don't like, but you have left some grain so it doesn't bother me so much...
Of course this last thing I have just said is purely personal, i'm just waffling on....
If you want some really useful help on this portrait, you might like to post it in the Portraiture forum (if you haven't already, and if you want critique on realistic portraits, rather than illustrative ones)
