I was thinking already this would be a great idea, I dont get why the original game didn't include this since the skins are already in the game as 'hero' units. I think most of the original game is pretty acceptable although I find the militia and knight line and the pikeman to be a littlebit too european for most civs. And the american civs having crossbowmen bothers me as well.

I think they shoud have considered making the archer line all non crossbow since they shoot arrows in a big arc unlike a real crossbow.

But I guess you could never make the game 100% historically accurate.
I think redesigning some patterns on the clothing of certain units and changing some shield shapes already would do a lot for me.

Is there an update of this for 5.8?

It's not working for me. I'm not using any other unit reskin mods, and I am using IA. Positioning should be correct on the modlist as well. I don't know why it's not working.

Originally, this was the case, so up until now, this mod didn't touch the Portrait Icons.

I have updated IA and this mod so that the Monk Portrait Icons now also revert back to the original Monk Icon.

I'm actually having the opposite problem of the warning provided - my portrait icon is the new monks, but my actual monks still appear as the regular old Catholic friar sprite. Running predominately other IA mods and set the monk mod as higher than the rest of IA... Any ideas?