It seems like Arrancars' physical appearances will change over a long period of time. Nnoitra looked younger when he was still the Octava Espada, and Harribel's hair grew much longer after twelve
La octava generación es real! Nintendo anuncia 'Pokémon Espada' y 'Pokémon Escudo' para Nintendo Switch
Octava Espada - Szayel Aporro Granz by slydollis on DeviantArt