Good but...
I've looked at all your stuff, and usually it is nothing short of fantastic. Very entertaining.
But in this bottom left corner as the punch is being delivered...he looks relaxed. there's no weight in his legs or arms and not much motion flowing through the figure.
His torso is leaned back from his waist, which would neeeeveeer happen in the midst of a punch unless you pulled back.
Just something to watch.
The motion in the other 4 frames is very good. Maybe you relaxed for the easy perspective on the punch in the bottom left.
