Concept sketches for Vellowday's project Clouds of Avia made last summer. The project is still in development, but I have kindly been allowed to put the sketches into my online galleries.

A closed in garden on a mountaintop in the clouds - sheltered from the rough world around it. It was fun to contrast organic cliffs and plantlife with relatively simple big structures enclosing it. Simple but effective I think.

http://rubisko.deviantart.com/art/Clouds-of-Avia-Arboteum-Garden-Sketches-570741910