Just though I would share what I have so far.

nice.it will be awesome when its done =P

Nice rotations, a little stiff, but that ok.
The main thing you should focus on is your pecs.
At the moment, you are not as much momentum as if you had
your pecs contracted a little more.
Hope it helped

Here is more backflips.

Looks good, a little more movement in the pecs and the knees during the flip would be nice, as it looks a little stiff at the moment.

I took that advice. New replay added.

Buuuump!

The last backflips are better then the flips at the start.
Try not have much delay between the flips.

The first flip was really nice, but it just got sloppier and sloppier as you move on. Focus on technique too, keeping a high standard is much better than a good opening flip. And your arms are still weird on the rest of the flips, don't contract them all the way :3

Okay, I will re-do the chain.