Just dropping by to say that I totally love the pose of the martial artist. A lot of your sprites give of a very energetic impression because they have such lively poses, e.g. the versus sprite with the baby, some of the gym leaders, the policewoman trainer sprite, ...)
On some of your trainer sprites, e.g. the Policewoman, I get the impression that the heads are too big. I do not like big heads much, but it might be a choice of style.
Well, so just to have said it, the martial artist has really an impressive pose.