Full or partial preparation of a book for sale on Amazon KDP

I do both partial and full preparation of a book for sale on Amazon:
1) Design of covers according to the requirements;
2) Preparation of A+ content in the same style as the cover;
3) Writing an SEO description of the book for the product card;
4) Writing an author's biography;
5) Creating a photo of a fictional author;
6) Choosing a unique pseudonym;
7) Writing a cookbook;
8) Selection of photos for recipes;
9) Formatting;
10) Editing;
11) Layout