Totally beautiful work. It is a good point about the copyright though, since many Linux users take licensing and stealing rather seriously in regards to calling something GPL.

I think you've done great! Using it as my login setting now.

OK Thank you. Did that hope its save now :/ I didnt know where i got this pic from,seen it all over the place so too speak

I hate to be the bearer of bad news, especially since I really like this...
That image is taken from digitalblasphemy.com
The colors have been tweaked to make it more purple than blue (see original: http://digitalblasphemy.com/fshow.shtml?i=fluorescence6&w=1152&h=864&y=2000&n=Fluorescence%20[6]&b=count&z=228358585275238832&m=144875699586354698&zs=fluorescence)
And the owner of the site mentions copywrite http://digitalblasphemy.com/webmasters.shtml
"Interested in using my images for something other than personal wallpaper?
The images in my galleries are protected by international copyright law. By visiting my public gallery you are granted a personal license to download and use the images as wallpaper on your personal computer and to share a few of them with your friends and family through email. Posting my work on personal or commercial websites is prohibited with the following exceptions:
*Non-Members: You can choose to use an image from my free gallery for your web page background provided that you heed the following rules:
You must host the graphic file yourself (see below for some sites which will host your files). I do not provide image hosting, and the image will not display on your page if you try to link to it on my server.
You must provide an image credit and link to digitalblasphemy.com prominently on your page.
I remove images from the free gallery from time to time, but you can leave any image that was once in the free gallery on your page if you follow the above rules. "

So, basically, you have to say you got your image from that site, and everything should be okay