So you now get this electric guitar that looks like it's made out of water. And then it's sitting in a pool of water and you have these water rings going out.
And also in the background we can see some sheet music. Can't make out what song it is, because you can only see a part of the notes.
Well can't really tell what kind of electric guitar that's in this wallpaper because the water effect. And it is an complete overlay of the guitar. But still I think this is a very nice guitar wallpaper.
I did a similar wallpaper of my classical guitar you can look at it here.
Guitar Wallpaper - Landola Classical Guitar Strings Blue Water Wave Effect - 1920x1080
Well it's not really a water effect, it's more of a wave effect that I did. And the view was of the fretboard. But have a look, you might like it.
The size of this guitar wallpaper is 1260x765 so this will work well for you that are running widescreen computer monitors also.
The author mozbrooklyn was nice to drop in a comment about this wallpaper. The original wallpaper can be found here http://www.crystalxp.net/galerie/en.id.14727-aquatic-guitar.html
The author of the wallpaper mozbrooklyn have also more resolutions there for you so the sizes might suit you're screen better.