Thanks!
For motivation and process, you can learn more on this interview: http://80.lv/articles/sir-carma-magica-voxel-was-like-having...
For the time it takes to do that, really depends on the size of the scene. For example, the recent temple I made took me around 5 or 6 hours.
Your work is stunning. Could you describe your process for choosing a color palette? Does that tend to come after you've completed the shape?
Thanks!
I never start with a color palette (and I think I should correct this).
I start modeling with basic colors and then adjust the scene's color all along the modeling process.
And finally, in post-prod, I continue modifying lighting and colors in Lightroom.