Nice attempt at live synthesis

FIrst thing to think about with replicating live work-
Try to define the world you're creating with your reverb. That's what tells the human ear where everything is. It's really a long process that actually involves a lot of math, but it can be done, but it involves a lot of math to get everything precisely right. This'll involve particularly the speed of sound and how that creates a natural delay between reverb and the first reflections the ear hears, and also, to a lesser degree, the way decibels relate to distance from the original source of the sound.
Also, try to keep the crowd samples a little more consistent. I liked the attempt, but some of the crowd's vocalizations were so obviously out of place. Also, much of it was just too obviously repeated. Unfortunately you'll have to find a very specific and comprehensive sample library to solve these problems. And I haven't seen one like that yet, but if you're looking at doing this again I'd suggest looking into it.
Other than that, this really, really kept reminding me of some of the live Emerson Lake and Palmer stuff. Which is definitely really cool.
For the attempt, this really was damn good. Nice work. If I wasn't paying this much attention I'd have sworn this was just a great 70s era band doing some improv live in the middle of a show.