Designing Redi's Flag

These were the first designs I sent Redi using his requested colours and shapes:

Redi preferred the designs where the shapes fitted inside each other, so I made a few more designs based on that:

He asked if I could reduce the number of colours in the design, so I tried four more:

Redi said he preferred the blue and black designs, which he finds minimalistic, and liked the idea of trying to print the flag design in lino-cut as I did with Kristyna's flag. - which should work well for the duo-colour scheme (I can either print in blue on a black background or in black on blue).