This isn't everyone obviously, but different regions in Aelethia have different types of people, the most common notable feature are their ears!

Giants have blocked ears.
Forest Elves have ears with colored tips and little nubs.
Mountain Elves have the shortest of all pointed ears.
And the weirdos at the bottom has weirdo ears.
Some that are not pictured are:
Bear-wolf Ears, which have colored tips, usually in dark tones. they're often mistaken for Forest Elves.
Cheerub ears, Which are wings.
Aquatic Elves have fin ears or none at all.

Though depending on genetics and other factors, ears can be longer, shorter, or a combination of different types! They're used as a general indicator of which region or kingdom someone, or their ancestors are from.

Rumor has it, the longer the ears, the more magic they have! (Which is banned in many regions by the way.)

And ROUND EARS??? those are just... impossible, NOBODY has round ears in Aelethia.
Except for humans who accidentally end up there... which is beyond rare...