Stylized Portrait of Jung Chae-yeon

My thoughts about this piece are divided. i think i didn't really make honnor, and yet I feel like i learn a lot from this painting.
I've always this feeling that i could do better.

I Wouldn't say that this piece is a failure because I'm quite satified with the result. It's just that she doesn't look like her, not even a little T-T

The sketch i've made for it.
at least at this moment we could feel Chae-Yeon.
What in the world happened ?