BlinkOk, what's those things at the lower right outer edge? And the glow of the lowest button? Compression artefacts? Besides that it looks cool.
To Maindric, I think you should find yourself some tutorials and practice. This is basically two rectangles with a drop shadow effect, if you ask me. Come to think of it, those rectangles aren't even the same height! Come on. You don't need to aim as high as BlinkOk's work, but a little practice can help.
So, take a critical look at your work yourself. Would you use a program that looked like this?