Sure, the other people think she’s more beautiful than she thinks, but they only showed the drawings for attractive women. Would the results veer the other way if the models weren’t, well, models?
Also, the other person’s perspective might be more beautiful, but is it more accurate compared to the actual face?
Also, also… how much difference can a smile make? Would the “ugly” face be prettier than the “beautiful” face if the first was smiling and the second wasn’t?