There will be spoilers regarding characters from the end of the manga here.
In Hayao Miyazaki's Nausicaä of the Valley of the Wind (Kaze no Tani no Naushika) manga, the characters are usually depicted as multi-layered, and developing throughout the series... except Nausicaä herself.
E.g. Kushana goes from blood-thirsty and arrogant to humble and peaceful; the Holy One of the Mani tribe helps Yupa and Asbel escape; Charuka first is loyal to the Emperor, but then decides he is actually loyal to the people, and sees Nausiaä as a saviour of the human race.
Even the Guardian of the Garden changes his mind about Nausicaä and lets her go. Same goes for both sons of the Emperor - they're not flat characters.
Nausicaä, on the other hand, remains the same - stil love the Ohmu, the forest, the people, and everyone else. She remains an optimist, and to an extent, a happy-go-lucky person. We are not shown much of her inner world except how she perceives the forest (positively), the insects (positively), needless deaths (negatively), and so forth. These are more or less all her character traits.
Am I wrong about this? Are there some subtle changes in Nausicaä's character that I did not notice?