Photoshop: painting a kingdom from scratch, no 3d, no photos.
This tutorial is broken up into 3 parts:
part1 (40min) sketching and layout. Followed by how to create an underpainting. You get the brushes and psd too.
Part2 (40min) taking the the underpainting and creating a harmonized color pallet. Blocking out the major shapes.
Part 3 (25 min): Details, polish, lighting balances, tips to not overwork things.