I've created the characters for a Star Wars RPG group for a client via deviantArt. They were joyful to paint and were delivered separately, and the group's gamemaster used them on individual binders for the players.
Each character was done as follows: collaged the pose from photos and images according to the descriptions. Created loose marker sketches in Painter, followed by a tighter line sketch, and flat colours, which was send to the client for approval. After that, the silhouette was cleaned up with the lasso tool in Photoshop, and masks made for the entire figure as well as important pieces, like weapons. A first lighting pass with the airbrush on an overlay layer set the light. Each character was then finished using mainly the Worn Oil Pastel, Concept Art Jitter Smooth Chalk, and the Blunt Tip Marker.