Rear part of that fairing is made in the same fashion, from a single  sheet of polycarbonate. Amazing what a clear idea, a bit of of paper engineering, and ability to wield scissors can achieve! As homebuilt fairings go, this must certainly top the league of cost to degree-of- cover to aerodynamic- effect ratio.
    The only aspect about it, that I do not like is its dependence on a supporting frame, to which it is bolted. Potentially, it represents a real hazard in traffic accidents, with the rider becoming trapped inside, and even "perforated" by broken struts, such as the one mid- frame between rider's legs. If not --forgive the horrific image-- beheaded in a crash by the sharp rear edge of the front part of it.
    For those reasons alone, I'd have much preferred, if the supports were kept to a minimum, even at the expense, and added weight, of using thicker, more stable, sheet of polycarbonate. In addition to that the top edge of the fairing ought to be thickened somehow to prevent it from acting like a knife in out- of- control situations.
    But, above all, in the event of a crash with a fast- moving Mad Maxian (or -Marsian, because, who really  knows where automobiles originate from?) object, after taking up the energy of the initial blow, the entire fairing with supports ought to separate cleanly, in two pieces, from the frame, thus freeing the rider from the bike. Ergo it ought to have been attached to the frame with some fasteners of a known, and consciously- selected, specific shear resistance. Of course, the difficulty lies not in selection, but in prior modeling of the forces at stake.