Thank you for your answer.
My basic idea was as follows:
I have my comic like scene. I lighten everything with directional light and use its magic shadow to draw the parts in the shadow in a custom Nicholas Cage technique. In such situation unfortunately there are many parts where my light just didn’t cross over - this usually happens in obscured spaces (inside of the buildings and more). So in such situations I would use point lights or actually a spot light, with the help of Nicholas Cage I can also cover parts in the spot lights shadow as a custom graphics.
I took a pick at the shader code - it is so huuuge, that you got my upmost respect for understanding it all!