Aether uses the medium male model, and Lumine uses the medium female model. Both siblings have (‍blond/blonde‍) hair, fiery-gold eyes, and pale skin. During their fight with the unknown god, both siblings had yellow wings. Aether's hair is a more saturated color and very long, while Lumine's hair is paler and chin-length except for two locks of shoulder-length hair framing her face. Lumine also has two light-blue Inteyvat flowers pinned on the right of her head and two pale blue feathers tucked