Gil: that doesn't change the fact that people might be looking at the forum at work or school and not want to be surprised by nudity. There's a reason most people tag threads that contain nudity.
Regarding the sprite, Gil's link should provide a good example, but here are a couple specific things that bug me:
-The movement of the hips as indicated by the crotch area seems to be timed incorrectly when compared with the movement of the legs. Actually, now that I look closer, the chest, stomach, hips, and legs are all moving either too much or at the wrong time. It kind of looks like random bits of her body are kind of spazzing out. Sub-pixel movement to smooth the movement, especially of the crotch and belly button, would probably help make this look better.
-She looks like she's sliding when she puts her foot down; this would probably be fixed by adjusting the foreshortening you're doing on the foot.
-You probably want more contrast in your colors; the light, low contrast skin and dark outline are making this sprite very flat.
The animation has improved quite a bit since the first version. Keep it up!