Watch your step when i get up because im about to drop some knowledge.
It really depends on the face and if the hair looks all matted down. All of the girls in those pictures look gross. First of all, the ones with obviously dyed hair look like trash and the others hair look really matted down and greasy.
Nope, sorry, too short. Anybody who likes it, and hates me for not liking it, can fuck off. I don't care
I really dislike Pixie cuts, they just dont look good. Those models look decent with that kind of hair cut, but thats because they were models, and I guarantee any hair cut would look good on them, which means long hair would probably look the same if not better on them. When in doubt keep it long, you can't go wrong that way. I've only met one girl in my life who looked better with short hair then long hair, and thats out of all the women I know. I've seen her with both short and long hair and she looked better with short, but the vast majority of women look better with long hair.
Ok, so to pull of pixie cuts, you usually have to have a slender face and not-so-soft features. Although looking at Jennifer Lawrence, she pulled it off REALLY well. I'd go with natural colors if I were you, just to give a better impression. Because once you color you hair an unnatural color, it becomes a WHOLE NEW style. The first and third are really nice!