This is very pretty. Reminds me of the really awesome paintings on like A3 paper, that i use to see lying around the art classrooms by the higher art students at my old school.
I love the hair too. It caters to my love of pink and hair curls.
If I were to give one criticism, it'd be the eyes. They look pretty good, but I think its your weakest point here. Perhaps work on the fullness and depth of them.
But it looks great so keep it up, fam! :)