Polska Walczy Sketches

Brainstorming/concept sketches for an upcoming Warsaw Uprising 1944 – themed project. Still missing something. The skull as symbol for this part in history seems to easy, superficial and inappropiate. I want to use a symbol of their hope instead.
The third sketch is my most varied/universal and used metapher, scribbled in between while being completely planless with those concepts.

In memory.