Soldiers all have interface pictures consisting of a musketeer silhouette superimposed on a national flag.
British soldiers all use a Union flag, which is inappropriate for "Early Explorers" when the flag didn't exist. Spanish soldiers all use a red and yellow banded flag which is wrong for the first three periods. So, how about these?

The "Early Explorers" English picture uses the St. George's cross, while Spanish soldiers from "Early Explorers" up to "Golden Age of Piracy" get the red, military version of the Burgundy cross. These are new pictures, not replacements, so soldiers in later periods would still use the interface pictures that they use now.
Any objections or suggestions?
British soldiers all use a Union flag, which is inappropriate for "Early Explorers" when the flag didn't exist. Spanish soldiers all use a red and yellow banded flag which is wrong for the first three periods. So, how about these?

The "Early Explorers" English picture uses the St. George's cross, while Spanish soldiers from "Early Explorers" up to "Golden Age of Piracy" get the red, military version of the Burgundy cross. These are new pictures, not replacements, so soldiers in later periods would still use the interface pictures that they use now.
Any objections or suggestions?