Unibrow has gotta go.
Seriously, just because you're a girl doesn't mean you wont have to shave anywhere on your face.
It's a good idea that you try to keep on top of that. They're very unappealing and are often points of ridicule.
Judging from your two pictures, you need a new hairstyle. Or just get something neater.
It'd look better when streaked.
And maybe it's just me, but your hair colour doesn't look like it suits streaks.
Your hair appears too dark/not dark enough (As in, not dark enough to add light streaks)
I'm not really sure.
They're temporary anyway, so just try it.
If you like the looks of it, then that's all that really matters.