Kogumi - I don't think you'll need a realistic picture from what your hair looks like now to what you want. It's not that much of a difference, I'd just tell them you want sloppy layers, and to make your hair a point in the back. That hair style you want is nothing too extreme, you probably don't even need a picture at all, you could probably get away with just telling them just fine.
I will scream as much as I want and if my voice dies, then let my voice die｡
It's better to be hated for who you are than loved for who you're not｡
And if you aren't hated, you aren't doing shit｡