Overall greatly composed, but some elements on their own need some more work to complement fully on the wallpaper.
Like in the linework, the logo, and some other small detials, could have worked better not blended in, in my opinion then. And the title, would have been better if it would have been positioned as the website address.
Then the lightning, you have those ring on a slightly higer opacity then the beam, this creates an illusion for the eye, wich attracts them to it, and see it. I personally find it degrading, but I could easily agree with the uniqueness of it.