pretty nice, but

if you just look at the head without the size and shape of the body in context, she looks more like she's in her mid-20s; it's as if you tried to draw the face with an 'intelligent' expression but just ended up accidentally drawing a literally more mature face instead.

Maybe it's just me, I don't know, regardless I quite like this overall and I can tell you've put a lot of effort into keeping all the strokes nice and clean, and keeping every line where it should be.