Nymain1
I love those badges.
Re 'my' countries.
Louisiana and River Plate are great.
If I may make a slight change to the CBA emblem as its the British American Football Association.
The Empire of Mexico emblem is brilliant quality wise. Unfortunately, the TL that the four countries are from Mexico doesn't use the flags or emblems from OTL past or present. It won its independence from Spain slightly later (8-9 years) than OTL and was aided by the Constitutional Monarchies of Great Britain and France who had the neighbouring dominions of the CBA and Louisiana (the Anglo-Spanish war saw Britain/CBA troops invade northern Louisiana whilst the French took advantage of Spain's weakness and seized New Orleans. An Anglo-French treaty divided Spanish Louisiana between the two with British Louisiana assimilated into the CBA. During the War of Mexican Independence, French troops based in Louisiana invaded large areas of Texas, which became part of Louisiana. Following Mexico's independence, civil war was averted between the Monarchist and Republican factions due to Mexico's allies - Britain and France both supporting the Monarchists. Both countries wanted their houses to rule, but the good Anglo-French relations offered a compromise. Royal contact between both countries was frequent and cordial. The 24 year old Prince Philippe, nephew of Louis XVII was a regular visitor to London and its royal and aristocratic circles. He had met Princess Victoria, who was four years his junior and cousin of Charlotte I on several occasions and a genuine attraction had formed between them. This opportunity was seized upon in both countries. They would marry and rule as joint Emperor and Empress of Mexico, their offspring being both of Hanover and Bourbon. To the Mexicans, this was ideal. It showed equal support from the two most powerful countries in the world and their youth a symbol of Mexico's own youth and vibrancy.
The flag of the Mexican Empire was one used in the War of Mexican Independence (similar to the Flags of the Three Guarantees in OTL).
Mexico in TTL covers OTL Mexico, California, Nevada, Arizona, New Mexico, parts of southern Texas, Utah, Colorado, Central America (apart from the Atlantic coast from Belize to Panama), parts of Northern Colombia