Can you please check if these sentences are correct?

In particular, I'd like you to help me find an introductory sentence to my paragraph and a proper conclusion (with reference to the theme of the double).
1) Explore the theme of the double as it occurs in the works of the writers we studied in class.
2 First of all, I'd like to point out that we dealt with the theme of the double when analyzing novels such as Shelley's Frankenstein, Wilde's The Picture of Dorian Gray and Stevenson's Dr Jekyll and Mr Hyde.
3) As for Shelley's Frankenstein, both Doctor Frankenstein and his creature are complementary. Actually, they both suffer from a sense of alienation and isolation, both begin with a desire to be good but become obsessed with hate and revenge.
4) The creature stands for the scientist's negative self. He refers to his creature as a miserable monster, a demoniacal corpse and a detested form.
5) Though Dr Frankenstein initially flees from his creature, he is (will be) constantly oppressed (haunted) by the monster's presence. This oppression turns into a nightmare when he fails to fashion a mate for his creature.
6) In The picture of Dorian Gray, the picture stands for the dark side of Dorian's personality, his double, which he tries to forget by locking it into a room. The picture could be seen as a symbol of the immorality and bad conscience of Victorian middle class.

For some reason the following sentence stopped me: Actually, they both suffer from a sense of alienation and isolation, both begin with a desire to be good but become obsessed with hate and revenge.

I suppose I was expecting a long "list" after the initial comma. Then I thought of 2 complete sentences. I'll leave it to you.

For the introduction, you might like to explain "doppelgänger" and the feelings/emotions that the very word evokes.

For the conclusion, have you drawn any "conclusions" from your study of this work? Many themes on this subject are depressing and this is no exception?

Sra

To check if these sentences are correct and help you with an introductory sentence and conclusion, let's analyze each sentence individually:

1) "Explore the theme of the double as it occurs in the works of the writers we studied in class."

This sentence is grammatically correct and serves as a general introduction to the topic you want to discuss. It clearly states the objective of the paragraph.

2) "First of all, I'd like to point out that we dealt with the theme of the double when analyzing novels such as Shelley's Frankenstein, Wilde's The Picture of Dorian Gray and Stevenson's Dr Jekyll and Mr Hyde."

This sentence is also grammatically correct and provides background information on the novels you studied in class. It helps establish the context for the discussion of the theme of the double.

3) "As for Shelley's Frankenstein, both Doctor Frankenstein and his creature are complementary. Actually, they both suffer from a sense of alienation and isolation, both begin with a desire to be good but become obsessed with hate and revenge."

This sentence is grammatically correct and presents a clear analysis of the theme of the double in relation to Shelley's Frankenstein. It mentions the similarities between Doctor Frankenstein and his creature, highlighting their shared experiences and character traits.

4) "The creature stands for the scientist's negative self. He refers to his creature as a miserable monster, a demoniacal corpse, and a detested form."

This sentence is also grammatically correct and provides an interpretation of the creature's symbolism in Shelley's Frankenstein. It explains that the creature represents the negative aspects of Doctor Frankenstein's own self and emphasizes the negative language used by Doctor Frankenstein to describe the creature.

5) "Though Dr Frankenstein initially flees from his creature, he is (will be) constantly oppressed (haunted) by the monster's presence. This oppression turns into a nightmare when he fails to fashion a mate for his creature."

This sentence is grammatically correct and discusses the consequences of Doctor Frankenstein's actions related to the creature. It explains how Doctor Frankenstein's attempt to escape from the creature leads to him being haunted by its presence. It also mentions the nightmare he experiences when he fails to create a companion for the creature.

6) "In The Picture of Dorian Gray, the picture stands for the dark side of Dorian's personality, his double, which he tries to forget by locking it into a room. The picture could be seen as a symbol of the immorality and bad conscience of the Victorian middle class."

This sentence is grammatically correct and provides an analysis of the theme of the double in relation to Wilde's The Picture of Dorian Gray. It explains how the picture represents the dark side of Dorian's personality, which he tries to suppress. It also suggests that the picture symbolizes the immorality and guilty conscience prevalent in the Victorian middle class.

For the introductory sentence, I would suggest combining the first two sentences to create a stronger opening:
"In the works of the writers we studied in class, such as Shelley's Frankenstein, Wilde's The Picture of Dorian Gray, and Stevenson's Dr Jekyll and Mr Hyde, the theme of the double emerges as a significant motif."

For the conclusion, you can summarize your main points and relate them back to the theme of the double:
"In conclusion, through the examination of characters such as Doctor Frankenstein and his creature in Shelley's Frankenstein, and the portrayal of Dorian's alter ego in Wilde's The Picture of Dorian Gray, we see how the theme of the double serves as a powerful tool for exploring the complexities of human nature and the consequences of suppressing one's true self."

Remember to adjust the intro and conclusion to fit the specific requirements of your assignment or essay.