I made a few changes myself. Can you please tell me if everything is possible?

1)The Wildean dandy is on the one hand an aristocrat, who uses his wit to shock the others and on the other hand an individualist who seeks (demands) absolute freedom.
2) He devotes his life to pursuing pleasure which in its turn results from his indulgence in the beautiful. Actually, his only interests are beautiful clothes, talks, food and handsome boys.
3) Dorian is a young man whose beauty fascinates a painter, Basil Hallward, who decides to portray him. Dorian wishes he could stay young for ever whereas the portrait grew old in his place.
4) While Dorian’s desire of eternal youth is satisfied , the signs of age and corruption appear on the portrait (are recorded/reflected by the portrait?) .
5) Dorian lives only for pleasure, making use of his friends (taking advantage of..) and letting people die because of his insensitivity. When the painter sees the corrupted image of the portrait, Dorian kills him.
6) Later Dorian wants to free himself of the portrait, witness to his spiritual corruption, and he mysteriously kills himself.
7) The portrait stands for the dark side of his personality, which he tries to forget by locking it in a room.
8) Every excess must be punished and reality cannot be escaped. Dorian cannot avoid the punishment for all his sins.

)The Wildean dandy is, on the one hand an aristocrat, who uses his wit to shock the others, and on the other hand an individualist who seeks absolute freedom.

2) He devotes his life to pursuing pleasure, which in its turn results from his indulgence in the beautiful. Actually, his only interests are beautiful clothes, talks, food, and handsome boys.

3) Dorian is a young man whose beauty fascinates a painter, Basil Hallward, who decides to portray him. Dorian wishes he could stay young forever, whereas the portrait grew old in his place.

4) While Dorian’s desire for eternal youth is satisfied, the signs of age and corruption appear in the portrait.

5) Dorian lives only for pleasure, taking advantage of his friends and letting people die because of his insensitivity. When the painter sees the corrupted image of the portrait, Dorian kills him.

6) OK

7) The portrait stands for the dark side of his personality, which he tries to forget by locking it in a room.

8) Every excess must be punished, and reality cannot be escaped. Dorian cannot avoid the punishment for all his sins.

Regarding your request, as an AI bot, I can analyze each statement to determine if everything mentioned is possible based on the information given. Here is an analysis of each statement:

1) The concept of a Wildean dandy, who is both an aristocrat and seeks absolute freedom, is possible in literature and culture. This archetype of a character can exist, representing the juxtaposition of societal expectations and personal desires.

2) It is plausible for a character to devote their life to pursuing pleasure, particularly through indulging in beautiful things such as clothes, conversation, food, and attractive individuals. This kind of character has been explored in various works of literature and media.

3) In the context of a fictional story, it is possible for a young man's beauty to fascinate a painter, leading to the decision to portray him. This scenario has been depicted in numerous artistic works.

4) The idea of a portrait aging or deteriorating while its subject remains forever young is a popular concept in literature and art. The contrast between external appearance and internal corruption can be explored through this device.

5) Characters who prioritize pleasure and exhibit insensitivity towards others, even causing harm or death, are common in literature. The consequences and effects of their actions can be key elements of a narrative.

6) Characters contemplating or committing suicide have been depicted in various literary works. If the story explores themes of spiritual corruption and the desire to escape from it, the narrative may lead to this outcome.

7) Metaphorical representations of a character's dark side or inner turmoil, such as a locked portrait, are possible in literature. They can symbolize repression or attempts to hide from the consequences of one's actions.

8) Themes of punishment for sins and the inability to escape reality are recurring motifs in literature. If the story explores morality and consequences, the protagonist may face retribution for their actions.

In summary, based on the information provided, it is possible for all the mentioned scenarios to exist in a fictional narrative. However, it ultimately depends on the specific context and execution of the story.