One of the most recent projects I was assigned was to provide assets for Trader Hugh's store, which needed gun posters, signage, photographs, displays and more. For many of these, I used Blender to export the models with and without example lineart. I would then draw over them using Rebelle's excellent brush system, and bring the project into Photoshop for the final result. For others, I simply made them entirely in Illustrator or Photoshop, such as the target practice signs.
Some of the assets are a bit different in the final version - these are taken from the A21 Preview stream.