The whole story is extraordinarily exquisite. Reading it feels like meeting a noble figure who's in his fancy outfit with dignified manners and beautiful youth. However, its elegance doesn't cause any sense of unreality, on the contrary, the idea of the story shows exactly the real part of one's soul which would sympathize with every single reader.
The main male characters in this novel, Henry, Basil and Dorian, can be seen as three different imaginary portraits of Oscar Wilde himself (as Oscar remarked once) and the author does show his sympathy as well as adoration for each of them.(and the perfect combination of the three men actually resemble Oscar's ideal version of himself) And the corruption of Dorian can therefore be judged as a dreadful yet natural precess of the writer's mental suicide, so tragic that you can't help finding excuses for the lad before realizing it's simply a metaphor from the author, horrible yet powerful, arousing strong emotions and insightful reflection and has made this novel mysterious and authentic at the same time.