We need to eradicate the "friend" factor from the equation, cuz if you name that guy (yourself) as chad's friend, then he would not be so strictly criticized in terms of aesthetics, and the results of this experiment with many trials will be very skewed and noninsightful. Its better to introduce your true pics in some distant and irrelevant way.
Because they look like autistic basement dwellers/tryhards in their selfies. It's very important to look NT. Also these were French girls who have different beauty standards than maybe US girls have. Unsurprisingly, they only rated the French looking guy highly.