Five paragraphs, about an hour or less. Don't overthink it. Below are some examples from my woodworking, but I think they illustrate the concept. The important thing to remember is the blog post is not the project: it is a very quick overview pointing readers to the project. Built up over time, these quick overviews add up to a longer representation of your body of work, which you can use to sell yourself.

https://www.aechairs.com/2025/01/15/black-side-chair/

https://www.aechairs.com/2024/10/15/painting-chairs-with-mil...