I decided to take a stab at what I believe is the appropriate path to take with this particular sprite. As you can see from the attachment; I have changed the sprite drastically for two reasons:
The first is the silhouette, as Cyangmou pointed out it is very indistinct. This has caused some confusion in the perspective of the character; so I chose to force it into a more forward facing perspective.
The second has to do with simplification; though the sprite is fairly large it is packed with unnecessary colors. The contrast is particularly muddled in her clothing which makes any details difficult to read. I've taken the character back down to 4 colors to hopefully assist with the contrast of the varying parts of the sprite. By fine tuning basic contrast I find it easier to make a sprite readable without having to deal with Hues at the same time.