Nice one mate! Good escape, wish I'd been at the party sounds like fun (I especially liked the kid's comments)
Ok now for the critique (remember this is only my opinion), as a live escape at a party this is very cool, but as a video with a bit of lighting, judicial editing, suspense building music/commentary it'd be a whole lot better.
If it was a performance piece for paying punters I'd recommend a couple of things. Firstly get the punters to tie your arms into the jacket and strap you in. Although this is time consuming, slipping into it the way you do makes it appear easier to escape from (I used to do the same thing and the reactions were never as good imho).
I personally would probably make a bit more out of it as well, I know this is difficult to do when you're concentrating on getting out and you don't want to increase the escape's length, but a few grimaces, rolls on the ground, grunts and panting pauses add to the suspense (you want people to think your not going to make it). Maybe even a bit of commentary from yourself would help too, anything to maintain our interest in you as the performer ("I think if I twist my wrist to the left I'll be able to get the chain a bit looser, no that didn't work").
That said, I really did enjoy it and can see how challenging it was! So really just keep up the good work mate.
Hope that helps...
