>>1967078Circled some crucial areas - you're using too many nodes for your hair lines - it makes them look lumpy. You do not have to follow the line that is drawn exactly - most artists working professionally don't have the time constraints to make it "perfect" You as a vector artist can take more time to fix these issues.
The other place I see needs work is the cheek blush - put a little bend in them - human faces are NOT flat, and have bends - putting a small bit of arc in those lines will give it more volume.
Finally: the glasses look imperfect. What I suggest you do:
* Make one of the lenses using strokes.
* Copy it.
* Paste and mirror it to the other lense.
* Paste and expand it to be perfectly parallel to the inner part of the lenses to make the basics of the rim
* Make those outer rim lines strokes.
* Put in the other lines for the rims using strokes.
* Make all those outer lines that were strokes into outline fills, and then merge them,
( remove the excess bits around the nose bridge, the eyeglass handle hinge bits, and contour, pad as neccesssary.
Hope this helps.