Love it! Bright, aggressive colours are good on the fly. They give teeth to the base of naturalistic, earthy colours, which serve to tie down and give meaning/purpose to the aggressive colours. At least that's how I always saw it.
I didn't even know that Huguenots used that design for their crosses. The more you learn...
Here's a flag I made for the San Francisco Bay Area. I really have no idea about the alternate history scenario in which it might become necessary, probably just some sort of balkanization of the US or California. The star has nine points for the nine counties of the Bay Area.