Not only is this more vibrant and scenecore than the other flags, but it managed to not hurt my eyes, which is rare because I'm usually sensitive to those colours. You're doing an awesome job, Qizzel!

I like it I also thought it was dual but I think it looked good so vaild,flag design. I like this one a lot maybe tone down the brightness than it’s fabulous

Wait bro…that didn’t hurt your eyes why does it hurt mine alil-I’m way too light sensitive 😭

To be honest I don't know how I'm not overstimulated and how my eyes don't physically hurt. Surely, OP knows something about color theory. I believe it's because the hues blend with each other, they use black to compensate for the eye-hurting brightness, and they use white to seperate the part where the colours clash, which is a genius idea most artists and designers I personally know don't think about. When creative brodies use a palette, they usually pick colours related to each other, which have a moderate to high amount of desaturation. Exceptions that look good aren't very easy to execute.

For example, here's Mayia the spring nation, also known as Mariposa. This countryhuman is mostly in desatured colours, except her little rainbow accessory. I think the bright colours work here because they don't take much space: the colours are balanced.

In a nutshell, I think the balance between black and white, desatured colours, and the bright colours are the reason this flag goes easy on my eyes.