The official Twitter account of Attack on Titan released a special illustration of Gabi Braun. AOT Twitter shared this illustration after the release of episode 11 of Attack on Titan the Final season. Michelle Sugimoto drew the illustration. Sugimoto is also the episode director of AOT the Final season. He directed episode 11 as well.
MAPPA also released an illustration of Kaya:
Anime Corner describes the anime as:
Over a century ago, mankind was devoured by giant beings of unknown intelligence and origin known as Titans. Creatures that eat humans alive indiscriminately and for no apparent reason. The remaining population has managed to survive the last hundred years only by building a multi-walled city capable of keeping the Titans at bay, training military recruits to patrol the perimeter and gather intelligence about their mysterious foe. Eren and Mikasa have lived a relatively peaceful life behind the city’s walls. But when a massive Titan appears, smashing the outer barrier and unleashing a wave of terror, their lives are brutally changed forever…