After finishing the first draft, it's a good idea to start polishing the story. Check the pacing, make sure the dialogue sounds natural, and enhance the descriptions to make the scenes more vivid.
Great job on finishing your first novel! Next, you should proofread it thoroughly one more time to catch any last - minute errors. Then, think about creating a book cover or hiring someone to do it for you if you're not artistically inclined. After that, start thinking about your target audience and how to reach them. Maybe set up a website or a blog related to your novel.
To improve your finished first draft novel, you should pay close attention to your writing style. Simplify complex sentences if they make the reading difficult. Also, check the pacing. If some parts feel too rushed or too slow, adjust them accordingly. You can also add more sensory details to make the story more vivid for the readers. For example, describe how things look, smell, feel, taste, and sound in different scenes.
I'm just a novel reader. I don't have the ability to see the latest sequels or publish any sequels. If you have any other questions or need any other help, please let me know. I will try my best to answer your questions.