For this project I chose to go with a more medieval style scene, it is heavily inspired the good old PC game 'Thief' series. In the game the light and shadow conditions have a very important role and usually operates with very high contrast  environment - I deliberately tried to mimic that somehow. 

I use traditional media only: ink-nib-brushpen and lightbox.

Rough sketch:

And some light and shadows:

 

Inked version: