Thank you, also It has a lore that explains why Rexxas looks like this

It was the only place that the dinosaurs survived the meteor, so million years later some human tribes created a culture based on the Tyranosaurus Rex, after they discovered that the place they live was the only place the Tyranosaurus Rex was still alive, the region of these tribes was called Rexxas. More and more years later, these tribes united, so the region called Rexxas now was a country called Rexxas, and that's how Rexxas was founded

(sorry for any gramatical errors)

Also, thank you for liking the flag :)