This is batch two of the draft designs I made years ago for the flag of the Terrestric Republic (i.e. Earth) in my fictional universe.
I didn’t want to lock myself into that whole “radiation” theme, so I also experimented with other paradigms. While I’m content with most of these as their own thing, I don’t really think that they are suitable for a national flag as I intended. Nevertheless, I still think that some of them have potential for lesser functions, for example as government or military standards or ensigns.