Ok, I've created a start with the creation of 'new' orks, trolls and ogres and I wanted to post the result to see what you think.
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In the World of Kouluu there can be found many races and each of those races has their own place in the so-called food chain. This food chain doesn’t necessarily have to mean that the top race eats the lower races, it is meant as a level of intellection. At the top of this food chain stands the Cyrthan, a grand, strong but yet elegant race with great intellectual. Though, the Cyrthan is a creature with many faces, thus it contains both elegancy and fury.
One level below the Cyrthan we can find the Baäl, the Zreal and the Loirk. These are all highly advanced races, with intelligence only matched by each other, equal level races, and topped only by the Cyrthan. The Baäl, however is a proud race and not willing to chare their wisdom with others. The proud nature of the Baäl combined with a thick yet flexible body makes can make them self-confident or even arrogant. What can sometimes be a reason for fights with other races.
The Zreal however, love to eat meat and sometimes even feast upon other races, often from a lower level in the food chain. The Zreal are also considered as the giants of the races, they are larger than even the Cyrthan are.
The Loirk, on the other hand, are considered small when compared to their equal-level races. They are of the same size as the human races and their equal-level races. Because of this, the Baäl and the Zreal sometimes consider the Loirk a lower level race too, though their intellect is higher than than of the lower races.
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With this, the food chain would become as shown below:
-----------------Cyrthan
---------Baäl------Zreal-------Loirk
--Goblin-----Dwarf-------Human------Elf
--Gnome------Kobold------Hobbit-----Fairy
--Greenling--Groundling--Beardling--Fairling