The sky really is perfectly lit and coloured. The clouds remind me a painting, too. I can see a shark and a furious bird shouting at each other in the clouds.
I'm the same as every one. Those clouds are a great capture. It looks as if they were smudge sticked. I know there not.
Clouds, they make the sky colourfull.
Have you tried cropping it into a more panoramic format?
For me its the clouds that are the attractive bits, the image to me would become stronger if the lower part is cropped off. Giving full attention to the clouds.
Yes, it`s handheld. I was with my bike on a little trip down the river and saw this sunset and the clouds. I just jumped from the bike, took out my Ricoh from the backpack and took the picture.........
....and i think it is a good idea to try a bit more "panorama", like Remko wrote.