The flags are vertical versions - they display using the traditional vertical hanging rules (which means they are rotated to the right and then mirrored. You can see my explanation of this in this video I made explaining the flags.
Hope this helps, or you at least enjoy the banners.
Have you ever wanted a to make your flag for your own map or project but found the crafting system very time consuming?
I've made every country's flag as a banner and included all the commands.
I posted every banner and comparison real flag in this Imgur album.
http://imgur.com/a/3sEhc
I have also created a world where you can download all those flags:
http://www.minecraftforum.net/forums/mapping-and-modding/resource-packs/1243823-1-9-qmagnets-test-map-for-resource-packs-and-map
The flags are vertical versions - they display using the traditional vertical hanging rules (which means they are rotated to the right and then mirrored. You can see my explanation of this in this video I made explaining the flags.
Hope this helps, or you at least enjoy the banners.