i just need to do it.

I've been wanting to do my hair like this for awhile. The cut, color--the whole shebang. But for some reason I am escared. Maybe I feel like the long hair I sport now hasn't run its course? I don't mean to get all existential, but this is an important thing for a girl and I wish I could just man up and decide already. I'm usually pretty gung-ho when it comes to my hair and don't really think twice once I've decided (a certain red faux hawk of yore comes to mind...)
Thoughts?

New hair.

So I need to do something new with my hair before I leave for England; I'm not cutting it, just getting a trim. I've been trying to grow it out forever and it would be dumb to chop it now. So I'm going the color route, and the above pictures are similar to what I'm thinking. The main color will still be dark brown, and then with any variation of color/placement. What does everyone think? I need advice. Remember: the cut is basically staying the same, it's just color I need your help with. Which picture stands out to you? P.S. For the second one, I was going to do a silver blonde or something on dark brown, not orange. Obviously.