You should also make it so that Union between Spain and Mexico should also automatically reestablish the Spanish Empire. This approach makes Spanish Empire #1 in Modern Day and #2 in Victorian Era since Mexico is the largest former member of the Spanish Empire.
Te falto: el rosellón, portugal, angola y Mozambique, benín, las costas de Somalia, guinea-bissau, algiers, Orán, bujía, tunez, cabo verde, norte de Borneo, las islas molucas, macao,cheju, nagasaki, pau, grecia y odessa.