I love the way you move, you have really good control; nice tricks through the surroundings adding style points to your parkour. Really decent parkour overall (actually a great replay, but somethings bothered me and made the thing less pleasant to watch).
I only dislike the way you go from stiff to extremely "soft" (relaxed). If you look carefully, your arms are just "twitching" while you climb that ladder, just like most of your course in fact; you just keep your arms held and start moving your pecs to simulate a walking/running "balance". Plus, at some points (specially before jumping. e.g.: frame 750 and frame 330), you go really really relaxed.
Summing up, I would recommend you to look more carefully to your arms and make wiser use of relaxes. Anyways, pretty neat replay, good job