Its Great xD!
I luv it, Its so minimalistic (dont know if i can spell.)
And yet she so detailed, its good because it gives a really good focus on her. And the hat just makes its sublime xD 5/5
She has a hat so ................. its great
Hats + Nudity = 55555555555555555555555555555555555
What you did was excellent...
But you didn't do much. Add a background or some color, or keep it one color, but add more depth (shadow/highlight). The crotch is dark, but everything else is bright. Maybe some shadows on the hat, behind the boob would help if you don't want to add colors.
YOU DID DO FINE JOBB PAITIG IT BUT NO IT NOT GOOD
I really like hand drawings, good work!