keep from :45 onward- that sounds pretty coherent
the intro has too many things going on- pick one of those segement and expand it
from 1:43 til the end i'm not too keen on- It would be better if you took that minute from 45 to 143 and found out an outro or loop for it
This is a pretty cool piece though and I was looking for something of yours to use in another action animation which just so happens to be a chase sequence.
If you clean it up and make it about 2 min I can use it