This wall looks awesome
When is it going to be up?
Infact what you're calling undefined appeals more to me 
BTW, go to Personalize, desktop background, choose the option that best suits you, thats what we have to do usually if on Vista as vStyler mentions "Vista's set as background function somehow lowers the quality of the wall"
for putting it up, try rendering the image at a higher resolution or HD 1920x1080p