Hair Dilemma!

So... I need YOUR help! I'm trying to decide what to do with my hair. It's been nearly every color of the rainbow, and most people who know me are shocked to hear that I'm a natural blonde. I've been dying my hair dark since my junior year of high school. I'm pretty sure I like it best dark brown (picture 3), but something in me lately has been thinking about going a little more blondey and different. Not super blonde, but kinda a dirty blonde again (like picture 1) or light brown? As you can tell, I really need some second opinions. Help, please?

Hair Dilemma