Excellent work with the anatomy. You really managed to make the character look shapely and voluminous. The flowiness of the cloak also adds a nice degree of flow to the character. I'm also quite fond of the character's expression. If you want to give the smile just a bit of additional flare, you could do this by turning the corners of the mouth to point a little bit upwards.
It's good that you are aware of your own mistakes. As such, there is no need to emphasize on them.^^ It is equally important to acknowledge the merits of your work (and the list of those is long indeed).