Which one of these 2 girls do you find more attractive?

A smile is always the answer. The girl on the right obviously has better lighting, so your first impression of her is bright, smiley, and attractive. But she looks too young for her age in that pose. I rate her an 8 out of 10. The girl on the left's lighting needs some help, so at first she looks dreary and washed out. She also isn't smiling, but she is trying to do that thing that models do, smizing, (smiling with your eyes.) Despite all of this, it looks like she has flawless skin (as it does for the other girl,) but that might be just because you can't tell because of her un-professional lighting. I rate her around a 6 out of 10. She would look nicer if she wasn't trying so hard. Don't get me wrong, both of these girls are beautiful, buy the smile is the key.