Well here's what I got. I was trying to get the shot in my hands but no one will be around to take it so this is it. It looks pretty different through the camera's eye, I see a couple spots I didn't see before, but no complaints.
Elk, I'm not 100% sure, I think it's just a thick cotton. I just bolted in and out of a fabric store before there was any blackmail evidence that I was there
The bow is backed with two layers of drywall tape for the support. After I tillered it and shot it for a while I put the clothe on purely for looks then re worked it. I wasn't sure if adding glue and fabric over the back would change any off the elasticity, but it seems fine so far.