You've improved a lot man Some good moves and good stuff keep doing, For the last animation for me the first punch seems weak try to add some strong poses to show he have charged the punch
I'm quite impressed with this newest one. You seem to be getting the hang of the snappy style and the 3D is sweet. The only issue is - as you've pointed out - the landing, which just has some minor shakiness.
It may help if you look at 1:33 of this tutorial. Also, going through the frames as you animate to check your spacing's consistent and doesn't jerk suddenly (the "<" and ">" hot-keys are very helpful here).
i can see better thing, like smooth and combos :D omg i can't do a choregraphy like this, you are better than the last time and it the most important! but try to make something original or long( i know i'm not the best to say that) keep doing like this!