With long travel a-arms in full droop the wheels will turn inward slightly with front steer... tie rods in front. If a car had rear steer the wheels would turn outward.Looking good overall. The front wheels in the last photos appear out of alignment.
It is a 3 point harness like in your car so if the shoulder belt is on so is the lap belt. I think he was trying to brace his left foot from the looks of it. And the one article said the passenger side was laid out weird for your feet.At first the wildy flopping passenger looked odd, but looking closer maybe he doesn't have the lower seat belt on?