no offense, but that portrait makes my eyes bleed. It looks like you just drew with the brush tool in MS Paint for the most part. The lineart is rough, the shading is unclean, and you use far too many colors. You need to go back and clean up the lines, and eliminate some colors (I recommend getting rid of one shade altogether and replacing others with dithering). The original sprite isn't bad, but in all of these try to make it more feminine, because right now it easily looks like it could be a dude (especially the protrait).
In the running animation the arms need a bit of work (especially her left arm). It looks ok for a start, but it needs quite a bit of work. The legs keep growing and shrinking, and the shape of the legs are too round in some frames (right leg is almost completely round, left leg a bit more realistic).
Basically, It's pretty obvious that you're new at this. Work a bit on the running animation, and really ork on the portrait.
