Answer:
considerate, consistent and very positive person.
Step-by-step explanation:
Madeleine can be understood as a considerate, consistent and very positive person. She was quite matured for her age as a schoolgirl because she always considered other's feelings. She knew she didn't like subjects like mathematics, literature, science or history but she still put all her effort to do well for her parents, peers and teachers' sake.
Madeleine was also consistent and optimistic in everything she did. The line "From her perspective, these classes were simple stepping stones to what really mattered to her - art." shows how she embraced every task as a challenge to her ultimate goal which was art.
Overall, Madeleine was always consistent and considerate from a young age. She was very mature for her age and always tried to make people around her happy while working on herself at the same time.