Definitely a great video! I would have built it a lot lower to the ground, mainly to stop the wind, and for ease of building. plus I would have added a lot of brush/foilage that you scavenge as a insulation layer over that tarp. When I teach soldiers how to build these, I have at least 12" of insulation layer on top, this way you can be inside your hooch and be in minimal layers and stay warm. The pertains to any weather scenario.