Hello, this is our opinion of Rap point 3.
a) At the beginning of the book Luke feels that he has to please everyone. So he tries to change the way he sees the world by trying to see it the way that Mr. Barraclough wants him to eg. black & white. But after going to the Art Museum Luke realises that everyone is different and that he doesn't have please everyone. In other words he begins to believe in himself and his ability to paint what HE sees it.
b) The other characters begin to respect Luke and the way that he sees the world. They also understand that not everybody sees the world in Black & White. Mr. Barraclough also changes his view of the world allowing Luke to paint what he sees.