Proofreading

I have written a book. This book has about 10 chapters and about 25k words, this is about self-development (and a bit of spirituality). I have used AI tools for brainstorming, and some of the contents
I want the following
1. An excellent cover design
2. Review each chapter for readability and reader engagement
Make sure grammar, sentence readability and reader engagement
3. Review each chapter for the subsection flow
There are multiple subsections for each chapter. Review the flow and remove any duplicates. Organise the subsections for better clarity and readability.
4. Suggest/add any missing section to make this a complete work
5. Review images, suggest any additional images or improve the quality of the quote/image
6. Please suggest any other points to make it an excellent piece of work

Please let me know how much you would charge for this. Thank you