My hair looked like this last week, I kept it this mash of colors for about 2 months (nearly a record) now its a freaking beautiful teal-aqua-green.
I like my hair - I use a straightener if I went to sleep with wet hair and its all retarded when I get up in the morning, but other than that its mess up and go. I dont get to have cool scene hair just constant homeless/pothead hair (though it cleans up well when I need it too), which I feel suits me in a strange way.
Its all about knowing what your hair wants to do and working in those boundaries...or convincing yourself that you want what you hair already wants anyway. My hair looked like crap when I tried to make it look other than how it does.