Portfolio project for data analytics

I just passed exam for AI Oracle databases SQL -(1Z0-171), also I have PL-300 certificate. Now I want to demonstrate my skills by creating my website and build portfolio project. The source will be newly uploaded databases. Will it be enough to show ETL process, data warehousing. Small Engineering, Analytics and recommendations. I will try to use AI with predictions ( though have no clue how ).

Is it a good roadmap, or would you advice some other way