For special occasions, perhaps look nr 2. It looks a but more "classy". But nr 1 is fine as well. It's "just you" and it really looks nice. For one simple reason: the nice smile is there and that attracts people.
no real difference. you can go outside without, wouldn't bother any guy and use makeup for a special occasion. if you wear it everyday it's not going to be something special ;) I can't really see a change when not using make up but I tell you, taking care of how your hair looks and how you clothe yourself is more what we guys see (at least I do)
Definitely without! You have nice skin, so makeup isn't in any way necessary anyway. If anything, I'd say mascara would be a nice addition because it allows you to keep that beautiful natural look, all while making your eyes stand out :).
First I have to say I love your hair color. And you look better without makeup, your skin is really nice you shouldn't put makeup on cause it will eventually damage it. Again you look gorgeous without makeup so don't bother with it.