3D is a difficult thing to do. I have attempted it hundreds of times, but I have always come out un-successful (sadly). Even if I do get successful, my renders are not as realistic as the one you can see above. To render near to realism is a very, very difficult process and that is exactly why I am featuring the wallpaper here on Crispme.com
The wallpaper is made by Athanase Georgellis. To check more of his work, check out his CGPortfolio over @ http://nas85.cgsociety.org/gallery/