First, focus on developing your own unique voice. Then, do thorough research if your story requires it. Don't forget to revise and polish your work multiple times to make it shine.
Another important aspect is character growth. The ending should show how the characters have changed throughout the story. If a character was once selfish and through the events of the story becomes selfless, the ending should somehow showcase this transformation. This gives a sense of progression and purpose to the story.
Authors can create a great twist by building up suspense. They slowly introduce elements that seem normal at first but later turn out to be crucial for the twist. In a thriller, they might introduce a minor character who seems unimportant, but in the end, this character is the key to the big twist that changes everything. Also, by having a complex plot with multiple storylines that converge in an unexpected way can create a great twist.
Without more context, it's impossible to say who the author is. It could be a well - known author from a particular country or a relatively unknown writer whose work was only recognized within a certain literary circle at that time.
The four famous novels on the internet were Dream of the Red Chamber, Journey to the West, Water Margins, and Romance of the Three Kingdoms. They were written by the Qing Dynasty and Ming Dynasty novelists Wu Chengen, Ming Dynasty novelists Shi Naian, and Qing Dynasty novelists respectively.