The goblin in a mask is probably a shaman..., but the orc with a sword and shield turned out much worse... his fingers look like a head.... in general, goblins and orcs are as ugly as peasants (+ they have some traits of swordsmen and archers), and demons (some of them)...

regarding upgrades, there are many options, you just need to use your imagination...
for example, here's how you can upgrade elves, archers:
one shoots twice (the existing one), and the new one, for example, shoots once, but has more armor or health...
you can make one inquisitor a combat unit, and the other more of a mage, make a bald mage, and the existing one in a helmet looks more like a combat unit...
you can leave the existing mage druid, and make the second one a werewolf...

in general, either stats or skills, or attack and defense,
you can come up with many things, you just need to use your imagination...

if you don't like the buffalo, suggest your own animal... that would suit the Barbarians... )
and it would be better if everyone had horses, like in the 3rd part...

the woman upgrades into a woman, not a man, she's just masculine... look closer )

Magnus, why are there 5 good races? Do you consider Barbarians good because they are fighting against demons? )))

P.S. and in general, maybe this is a Beta version... the monsters may still be changed... )

1. The goblin in a mask, it's like they couldn't find a helmet for him.
2. There are many upgrade options, but you don't need to do it according to a template, and there is already an alternative upgrade for Heaven, it was in Lords of the Realm, and they won't change anything.
3. Your thoughts are one-sided, what about a werewolf druid? This is already pure heresy, it would be more suitable for Barbarians, shamans in wolf skins, and it would suit them better than blood elves.
4. I don't agree about the horses, they could have been given to mages, but riding an elephant doesn't look very good, and Barbarians could have been given something barbarian, not a bull.
5. Because they went to fight against demons, but on the other hand, the Dark Elves also went against demons, but on the other hand, all living races are good because they gathered against demons, but the Dark Elves have a more evil type of life in their state, and probably the Barbarians too, at least because of the slave market. It's a difficult question, let's play and see.

I still can't understand what goblins and wyverns have to do with barbarians. Barbarians are supposed to be stupid, and the peak of their abilities is to train an animal or build a bow.

Because the population of the Barbarians consists mostly of orcs, they accepted all the creatures created by mages during experiments to create an army against demons, giving the bandits demon blood, after the victory, the orcs were persecuted and they fled far away, then the mages experimented with creating beastmen and centaurs, minotaurs, gremlins appeared, the latter remained, and the others fled, also, it seems that the mages accidentally created wyverns. Orcs also don't like magic because they appeared during the mages' experiments.

Is there anything written about their ability, or can you download a beta version?

There is some information available, and who told you that there is a beta version for orcs? Why would Nival make one? They haven't even made models for the upgrades yet, so what's the point of a beta? They are just creating an addon