I understand, the color aspect is very nice, though I would imagine lords can defect, so it will get messed up in time, regarding the flags, but beyond that, the graphic in some of them is hugely anachronical, by any margin. if such a new artistic stile would have been invented, used and accepted by the traditional nobility in Amala, more simple looking flags would not exist, not to mention that the back-layer of the flags is a traditional one, so weird mix, that would have an effect on the immersion of the game.
edit, also using the symbol of the Sikh Empire is kind of bizzare and unoriginall