Desktop fish spiral wallpaper

Does anyone know where to find a retina version of the fish spiral wallpaper that is featured in the ads for the 15" retina macbook pros?

see link:

http://www.staples.co.uk/macbook-pr...e-_-serp-pla&gclid=CPLBgMuw2b4CFcPMtAodRnoA5g

I've tracked down non-retina versions of the wallpaper before but those simply won't do.

Apologies if this has already been addressed before elsewhere on the forums.

Thank you,

 

that is the thread where I got the low-res version. Still looking for retina