Tellus: Character Concepts (Sky Folks)

Leanne from Fire Emblem

At their most basic, the Sky Folks fills (parts of) the niche occupied by elves in more classic settings: They are an ancient, aloof and slowly dying/fading race. This is such a common archetype to fantasy as a whole that it has long been ingrained within JRPG, to no one's surprise.

Unlike the elves, however, the Sky Folks are much more mortal with a lifespan much closer to that of the other races compared to earlier depiction of elves having massively vast lifespans. How long exactly this lifespan is would vary between Sky Folks clan and individuals. Sky Folks age gracefully, retaining their grace and beauty for a long time but they age from hatchling to adult at the same rate as Ulma and Dragon Clans. This has allowed them to better intermingle and live alongside Ulma.

Arcane Spellcaster

Much of what is deemed 'White Magic' by the Ulma has its root in the magic and mystical traditions of the Sky Folks: they channel the power of rejuvenation, healing, stasis and light more than the chaotic and raw elemental side of magic. The Ulma have long outstripped the Sky Folks in many aspects when it come to magic: having a higher % of their population being magically gifted doesn't exactly translate to 'all Sky Folks are good at magic'. Much of their vaunted prowess is a mixture of myth and tall tale and whatever truth may have existed has long faded in this era, with their knowledge of magic having grown increasingly limited and stagnant. Nonetheless, as adventurers are (usually) gifted individuals it make sense for a Sky Folk character to display such powers attributed to the Sky Folks of old.

• The expression of the innate magic of the Sky Folks would be the Sorcerer. What Bloodline exactly can vary between aeries. Honestly I haven't found a good Origin which fit well with the Skyfolks (yet).
• The Bard class, if it exist in Tellus, would be rooted in the ancient songs of the Sky-Folk. The ancient songs of the Sky Folks were said to carry potent magic and singing has long remained ingrained in the general culture of Sky Folks as well as playing various wind instruments. Even a non-spellcasting Sky Folks singer could earn some good money purely by their singing skill and the exotic, awe-inspiring nature of their presence.
• Sky-Folks are well-suited to the Warlock class but not in the traditional depiction of the class. These 'Warlocks' are not power-hungry dabbler who sell their souls to eldritch powers but rather willing channelers of ancient spirits of great magical potency who willingly lend their aid to the Sky-Folks. The Celestial Patron is a good choice, as is The Dreamer, The Sybil (Kobold Press' Deep Magic: Combat Divination) or any Patron that isn't something ominous or destructive.
• Given their image of holyness and being very much angel-like, it make sense for Sky Folks Wizards to be Angelic Scribes (Kobold Press' Deep Magic: Angelic Seals). The 'angels' of the Sky-Folks are mixture of abstract beings, spirits of light/healing/whatever and the ascended thoughts and memories of their ancestors.

Divine-Aligned Characters

As with all races of Tellus, the religion of the Sky-Folks isn't something which has been greatly detailed and it doesn't really need to, as it is exactly one would expect: the usual about the light, ancestor spirits, protection, blablabla you get the point. However on average, the Sky-Folks have slightly more divinely-empowered champions and spellcasters than the Ulma or the Dragon Clans, if only just barely. The days of myth where their very songs summoned the Gods of old are long gone.

• The Sky-Folk Paladin is both a logical yet unexpected choice at a glance. The classic Paladin as a holy warrior empowered by the gods of justice, light and all that-other-stuff make sense with the racial connection to the forces of good and light. However a Paladin is generally a heavily armored frontline warrior, which clash with the lithe and mobile Sky-Folks.
• A Sky-Folk Cleric is very much one of the ultimate expression of their ancient culture, as they would be a divinely-inspired healer, magician and holy man or woman. Such a character would need a good explanation as to why they are not actively protecting their aerie. However this explanation could be as simple and basic as some divinely inspired youth flipping the finger to crusty elders and going off in the world to do good. Suitable Domains include: Life, Light, Protection or Solidarity.

Other Options

'Martial' characters are hardly impossible for Sky-Folks but they'd be looked at a little bit funny due to people's expectations of some graceful, almost divine magician or gifted singer with a magical voice. Sky-Folks Fighters are generally those who rely on their innate mobility and dexterity rather than frontline fighters who would risk damaging their wings. Rangers might exist too but the other classes are generally unheard of among that race.