Here is a full description of the contest, by Alvaro Luna:
We have launched in YafRay.org a second annual contest to encourage YafRay
usage. The contest topic is: The Lost Bytes
"Where do the lost bytes go when your hard disk definitely crashes or when you
format it? and when a file is erased? The render should depict a heaven for
bytes where they can have a better life once they die in this world. One could
also image a bytes hell or even the well known bytes bucket. Imagine, what
happens to the evil bytes?"
The date limit to send us your entry is 1th of July 2008, 0:00 GMT, and
yaf(a)ray must be used for rendering your scene. Yaf(a)Ray is the active
development branch of YafRay.
There are prizes for the winners which consist on books about lighting and
texturing, although you can choose alternatively an item from the Blender eshop
or another CG book of similar price.
To know more about the contest, rules and deadline, visit this link at the YafRay user forums.