Whilst waiting at the airport for my next flight I decided to speed model a cloudscape in Blender. With only an hour of battery life on my laptop, I had to be fast! I ended up finishing it in just under 52 minutes.
Made in Blender 2.5 using the new powerful volumetric rendering system. The sun was added in Photoshop.
Watch the speed modeling video: (http://www.vimeo.com/10369381)
I've also prepared a tutorial:
Creating Volumetric Clouds (http://www.blenderguru.com/create-volumetric-clouds/)