Develop Swimlane Process Diagrams for eCommerce Business

Hi, I have high level process diagrams for an ecommerce business. I want to flesh it out to 2nd and 3rd level process flows. The lowest level process flow I want to be in swimlane format. My preferred tool is Miro.

Please do not apply for this project if you cannot show me examples of process flows you have done in the past.

Thank you