I don't like the text and the background is really boring. I'd work on your effect placement. I also don't like how white Miku's chin is. Looks too "there". I'd suggest toning it down a bit. Not a fan of the border.

BTW just a side note. Her name is Hatsune Miku, not headphones :E

Kiu Agitator, by the way, is tenacious turtles still up xD?