Hi there, I think your cosplay is really awesome. I work as a co-editor for Caped Crusades another Fansided.com site. It's a website dedicated to all things Batman and I would like to use your cosplay for our cosplay fo the week post. We would of course give you full credit for the costume in the post. My email is firstname.lastname@example.org let me know if you're interested in letting us post your cosplay. If you are interested let me know what name you would like me to credit and any websites you would like me to link to.
I used linen instead of burlap-- burlap is too coarse. Then I used jute to do the stitches. I didn't stitch separate pieces together i just did folds. Also aged it with acrylic paint deluded in water. Not much more to it than that!
Really I just mixed a squirt of black paint in a bowl of water and dipped little parts in it-- the effect is very light but a little goes a long way. In some places I even used my fingers and layered. You really just gotta feel for it.