Yaarel
🇮🇱 🇺🇦 He-Mage
The deemphasis of species seems intentional. The player characters are less about biological differences between species and more about the organizational differences between cultures.In 5E a 3rd level elf fighter looks very similar to a 3rd level human fighter.
In the context of 5e it is more helpful to think in terms of "origins": the background (ability improvements, proficiencies, and feat) in addition to the species. That said, the species is a hefty amount of design space, to elaborate on many posible concepts.