Recently I have tried a new version of Freestyle (integrated in Blender).
So after some tests, I have render some picture which I really like.
Freestyle is a great addition to blender and a wonderfull and powerfull Tool (thank you the dev (Maxime and Tamito) !))
So, the pictures (tests) :
Freestyle + blender-edge (for the building) (character is 2D) :
Freestyle (+some retouch)
Only freestyle :
Hope you like it
You can see others examples on this thread :