Ah the struggle for satisfaction with your art, I know it well. As you grow into a style, you will become more satisfied with your art.
You've got yourself a very nice OC there, I love her hat. You're shading is very, very well done. Especially with the fuzzy bit on her cape.
The bottom of the pumpkin looks like it could be a bit darker though.
You're color is very nice and appealing.
Her hind legs seem a bit thick, although that could very well just be me since I prefer to draw really skinny legs.
I'm curious as to what that bird on the back of her neck is though... Is it meant to be a tattoo? Either way, the whole thing looks great.