In addition to the above, you have a lot of banding going on, notably on the arm. Try to work on that area, keep pixels clustered and colors limited for clarity!
An example of a place you could reduce colorcount is the highlights on the legs, they're not really visible at native resolution and when zoomed in kind of "clutter up" the sprite. Also doesn't conform to what's expected of cloth, which usually isn't that shiny unless it's a special material like silk or latex.
At this resolution it's readability over all else.
Also, is she supposed to be wearing a coat? What are those blue bits to either side of her?