Characters in novels should be written from the outside in, gradually revealing themselves through the perspectives of other characters. The key would be that the other characters have very different impressions of the character, one despising the character and believing her to be worthless, another thinking she is a great person, another indifferent, and so on. The being of the character should always be slipping away, unclear, fraught… Even to the character itself. The identity of a character should be like a mystery in a detective novel, but without resolution. The points of view should say more about the person who views than what is viewed. But even that should slip away and be elusive. This is the tragedy of life, and even a bit why we love others. If we can catch a bit of how they see us maybe we can see ourselves a bit.