Humans: Humans do not have any magic, although there is the rare human that has meditated for 100 years to receive magical abilities, then they are called namthan.
Humans have many different colored eyes, from blue to gray to green to brown to black to even orange or purple or pink, although the warm colors are more rare. Humans tend to stay in their regions from when they are young, or make a migration maybe once or twice and choose to stay after that, as work is also divided among the regions. Those who live in western regions tend to have golden skin with yellow undertones and dark hair. Central regions have dark skin and dark, curly hair, as they get the most sun. Easterners tend to be very pale with light skin and light hair and light eyes. Southerners tend to be caramel colored with light hair and light eyes. Northerners are pale with dark hair and dark eyes.
Nuthan: Silver eyed, or gold eyed if very powerful. It is impossible to steal the life force of a nuthan unless you are also a nuthan, or a high immortal yeuthan. Nuthan are immortal and stay youthful forever, although they died if they are physically killed, such as by stabbing, beheading, hunger, sickness, etc. They have various magical abilities, although the basic of these is healing, travel, weaponry, elemental, and sense enhancement. They heal faster than humans and namthan, and some can even regrow limbs if given enough time. They cannot a head, although if they are powerful, they can regrow a liver or even a heart. Traveling abilities manifest in either cloud travel, the ability to breathe underwater, super speed, or teleportation. They can wield a magical weapon of choice, which contains some of their life force. They can usually conjure up a fire or shield themselves from rain or stay cool in the heat. As for sense enhancement, this can manifest in different ways as well; some have gifted vision or hearing or are able to scream in sonic waves; some can communicated with animals or plants or the ocean. Some have telepathy, some can even wield mind control. It all depends on the power of the nuthan and how much meditation they have done. Nuthan are not supposed to kill, therefore they donāt eat meat either. If they must kill for the sake of war or self defense, they must meditate after to cleanse their life force.
Namthan: Generally bronze eyed if they are very powerful, but usually have the same color eyes as any other human. These humans with magical abilities have longer lifespans but are not necessarily immortal; they must meditate and not kill or steal for 400 more years to achieve immortality. They could also be the children of nuthan and humans. These can wield 3 powers at once at a smaller degree, such as gifted sight, hearing, and strength, at once, or perhaps yielding fire and cloud travel and healing, or hone one power to full strength, such as controlling a tsunami or teleporting continents away or shapeshifting.
Yeuthan: There are different types of yeuthan; beast aspect yeuthan, human aspect yeuthan, immortal yeuthan, and high immortal yeuthan. They are yeuthan because they have consumed the life force of another for their own gain. Beast aspect are those who were once animal spirits and consumed the life force of either 4 animal spirits or 1 human spirit and are now human-like but never fully human. Human aspect are those humans who were once null (non-magical) but have drained the life force of 4 humans or even 1 namthan for magical abilities. Immortal yeuthan are yeuthan who have stolen the life force of 14 namthan for immortality. Some high yeuthan can become high immortal yeuthan by draining the life force of a nuthan, All yeuthan can be identified by their red eyes. The children of yeuthan are also yeuthan, and get to choose to be animals or human when they are 16. If they choose, they must meditate for that two years until they are 18 and abstain from killing as well. If an adult yeuthan wants to repent, they may meditate for 500 years to revert back to their original status before they became yeuthan.