Their biggest flaw is how so many flags look alike so you have to memorise details like Estonia having spikier waves floating, while Latvia's are rounder and at the bottom. A lot of them use light blue and dark blue, which granted are distinct colours in Russian, but blue defacements make up 11 of the 15 flags! Positioning and proportions of the star and hamsic are also inconsistent in IRL flags compared to images online.
