Skull of Shadows (SoS) is a Polish mod that replaces all the factions.

Unfortunately, no, because I don't know how to make mods (I tried, but I'm too dumb and don't know the basics of C).
Unless you just look at the game, identify which models are good, and pass their names on to someone who knows how to work with the code part of mods.

Added after 12 minutes
However, if someone is willing to teach me, I'll give it a try.

It's not that difficult. I figured it out in two weeks of work, learning about the structure of mods, and now I can do whatever I want (create my own neutral factions based on NCF and replace creature banks with more interesting versions). And what code are we talking about? An editor + notepad, and that's all you need. After many attempts and the editor/game interaction, experience will come, and then you'll be able to create mods of all kinds.