Blooming canola (rapeseed) fields in Luoping Country (罗平县) in Yunnan, People's Republic of China.
It's a handheld panorama shot merged from 7 images. Frankly said, I'm already a little bit sick of this photo as it was an absolute torture to edit; it may not look so, but it took me about 15 painfully mind-numbing hours of GIMP work. Partly due to my PC's inability to handle an over-700MB RAM-requiring monster of a photo with 894 MB total RAM installed... Never again.
I know it may be a bit over-saturated, but I like it the way it is. And I won't touch this photo again, nooo, no, just no!
PS: It's 10000 px wide! (+_+)