...
4) Naturally, the main conflict is between Order and Chaos, i.e., humans, dwarves, elves (forest and night elves), and orcs against Inferno (Chaos).
So, 4 races out of 6 against one? And another one on its own? The balance is off... why can't orcs also be on their own? And help whoever they want (whoever pays more, who is stronger, etc.)...
,:)
Added 1 minute ago
Besides the fauna, it will be necessary to add a map of the lands. I think this is very effective and makes the right impression.