You can't deduce the personality of the potter from the pots. It's a thingy you've made and offered to somebody else for their use, and, believe me, a novel is like that. It's a made thing and ought not to contain a direct self-expression of the writer.
I worked for many years as a writer for children and then wrote two adult novels of the kind they call 'literary' without any very great disturbance to this kind of life. Then, something went wrong. My third adult novel was rejected by the publisher of the first two. And I could not understand the criticism offered.
I think that novels are tools of thought. They are moral philosophy with the theory left out, with just the examples of the moral situations left standing.
