It might be either realistic or imaginative. Readers enjoy reading both kinds of works. All they want is engaging writing presenting reality or imagination in a great manner. I don't think readers always expect characters in creative works to be believable and admirable because nothing is permanent and always dependable in this world. Anything might happen at any time. Chance is the guiding force. Nature is the source of influence and beauty. I create my characters based on reality or my imaginations, depending on the kind of information or entertainment I intend to reach to my readers. Healthy entertainment and constant social reformation are my primary goals as a writer. Most of what I write meets these criteria.