A Sun Oven vs. A Convection Oven

So I cooked my meals on a sun oven yesterday. I made it from a pattern I found online and I used only cardboard, clear plastic wrap (kitchen wrap), and aluminum foil. At first I thought it hadn't worked because the food looked so different from typically baked food, but after setting up the oven and leaving it for several hours it did it's job! How beautiful and easy it that?