This is a very interesting civ design, and it’s taken me a bit of time to get my head around it. I think that pretty much every element of this civ could be a positive addition to the game in the right context. However, I also think that putting them all into one civ is mistake. It’s just too much with regards to power budgeting, and it’s also a missed opportunity with regard to including a mixture of simple and complex civ designs in the game.
Ejercito Patriota While the movement bonus has been pretty widely criticized, I’m glad to have it exist in the game. This sort of extremely simple yet massively impactful bonus makes for far distinctive and memorable civs than many of the designs we’ve seen. However, since it's such a powerful bonus, it’s important to balance the rest of the civ with this in mind. In Civ V, for instance, Korea had one of the strongest UAs, so the devs paired it with two UUs that, while distinctive and situationally powerful, also introduced major handicaps. Clearly that’s not what happened here. While the UU and UI are limited to some degree by their mid to late game nature, both clearly have quite a bit of power once they do come into play.
Campana Admirable/Comandante General This seems like by far the civ’s most unique and intriguing ability, and I think it’s a shame it’s been mostly overshadowed in discussions so far. Ironically, it actually reminds me a bit of Civ V’s Maya, though the order being randomized does make it quite a bit different. A lot will depend on the exact abilities, but I could see these unique great generals adding quite a bit of replayability/game to game variation to Gran Columbia depending on the order they appear and how you prioritize maintaining/expending them. Of course, this does make Gran Columbia something of an “advanced” civ, complexity-wise, so it might not be a good combination with the civ ability, which is much more straightforward and would otherwise have made for a good “intro” civ.
Llanero Possibly, the civ's least impressive element, design-wise, this is a UU with a lot going on, but little of it particularly stands out or has a clear flavor justification. The interaction with Comandante Generals is perhaps best with regard to distinctiveness, though civ/leader abilities that can’t function without one another still bug me, since civs and leaders really should be interchangeable if you’re going to go to the trouble of distinguishing their abilities from one another. If “singing warrior” is the flavor they’re aiming, for a culture ability of some sort would be much better, making for a potentially distinctive ability without adding too much power to the areas where the civ is already strong.
Hacienda A fine UI in its own right, but I really struggle to see how anyone could look at the rest of this civ and conclude it needs a spammable production and housing bonus. This is the sort of improvement that, combined with other abilities, would be a civ-defining feature, and adding it here just seems like massive overkill.