Darren's post is spot on. I made my Ghillie from a kit I purchased from BushRag. At the time, only burlap was available, so my suit is heavier and hotter than ones made from synthetic fibers. I used a leafywear jacket as my base, since it is made from netting and already had camo strips sewn onto it.
I only use the jacket, no pants. For a head covering, again, Darren is correct in saying that a hood will totally blind you out when you turn your head. I took a boonie hat and tied netting onto it, and then proceeded to tie on the burlap jute strands.
Modify it as you use it. Cut off and trim it if it catches on anything or obstructs you from drawing or seeing clearly.
Face paint and partial mask, and you are invisible.
Bush Rag would be my choice. I made mine well over a decade ago, and have gotten many miles out of it. If I feel the need to replace mine, I would get theirs.