Cool man!!
everything is so fun!
one thing i think could make it more powerful is when he lands, i suggest taking out 5 frames of movement... remember, he's coming in from who knows where, all you know is that it's fast. I think you can probably safely go from the point where he touches the ground to when he's kneeling in one frame... basically the five frames following the initial touch on the ground can probably go right into the kneel in a frame... and add those 5 frames in the recovery... if that makes sense...

I think it'll make it way more impact-full that way, and give good reason for your lovely broken street to break
the run is absolutely freaking fantastic!!!!