the proportions in all those sprites are weird, they're lanky and have no joints. you have to try representing the human body curves and DBZ proportions first before trying to make animations.
the legs look extremely short compared to the torso and head, i strongly suggest you to either increase leg length or shorten torso size.
the legs look extremely short compared to the torso and head, i strongly suggest you to either increase leg length or shorten torso size.