Where are the colours?

Hmm.. I wanted a fresh looking computer desktop background, and went about searching for some good images on a few better known sites.

Has the definition of a "good" image been fortified as -
1. It should be something green !
2. Some closeup picture of a blade of grass, a dew drop, or a bird shot with a telescopic lens
3. Empty landscapes
4. Sunset / Sunrises
5. Shilloutes
6. Flowers shot at such close up, that you feel you stripped them naked?

Just want one background image that can brighten up a day! - Is that too much to ask? Huh?

I will start my photography back!