Lol i like the color scheme you set up, i kinda had something going like this with a lady gaga stock along time ago but i hit the point where you are now
Bluntly, its too empty
While the colors work and i love the washed out conceptual feel and the text, it needs more added to it to fill some space. How you do it is up to you, since i got stuck on the same point on a wip that failed way back during Christmas. All i can say is try playing with the path tool and some inverted shapes, colors and other effects. If you add more keep it consistent with the style of the sig, modern and sleek
Very cool concept and colors, hope you improve it and cant wait to see more kiu!
Edit: and I see you haven't entered the SOTW... *looks at theme* oh its freestyle *looks at tag* Oh it could be entered