Very nice, though the legs are very odd, and seem quite out of place.

 the perspective on the legs is totally different from the rest of it. They also seem extremely short compared to her width.

 It's not bad for an original character design.

i would suggest thinning the outlines to a one pixel thickness and use a lighter colour to AA the outline when doing curves.

 No refs at all, was just trying to do something else.  The difference with my other creation is that i draw this one on a paper first.

Thanks for your advices.

 I liked :D

Quite messy pixelling and unlike the work in your gallery (technically and artistically).

Are you using refs, tracing and then coloring or something like that? That's ok to do as you learn its just better if we know when adding your pixelart.