Top right seems to be the best.
The others:
- Top left: Mystery tongue coming from or going somewhere
- Middle left: Much to bright, hard edges make finding icons difficult
- Middle right: Too many dark areas
- Bottom left: Might be okay as well
- Bottom right: Too bright and might not fit the mood as this seems to be an anime inspired background
Germany had legal jewish citizens before Hitler came to power. Some even voted for him. Strong leader and all that...