This is really cool. The only thing about it is that it's really simple. I'd love to see this with a transparent turntable in the background or some action shots of her partying! =]
I don't know. I've never used GIMP. I haven't actually done a whole lot of digital art to be honest, but i'm sure you could google something like "transparency GIMP" and it might turn up something you can use.
That is amazing how you make the wallpapers.
My inspiration to start making wallpapers came from this guy: