It's an okay start, but there's a lot of issues. What's the litgthsource? It seems random. From the top, left, right, below? How is she holding the shield? Are you going to give her a spear? Have you decided what kind of light shines on her?
Lots of things to work on, but i suggest you start pulling it together by giving her a more exciting pose, or just work with the legs a bit. Google around for vikings and maybe you'll get ideas on how to give her more personality too!
Once you have the pose done, try making the different clothes look different enough. Give a distinctly different value for brown parts to lose the flatness. and make metallic parts shinier.
Once you have all that done, then it's time for pixel polish.