At first, I was working on a portfolio to show the three scenes separately, but my teacher recommended to combine them into one, so I focused on the light and merged them into one.
In the order of production, modeling-UV-texture-lighting-rendering followed by post-production after path synthesis.
The process of creating a portfolio is difficult and a lot of unexpected things happen, but I think I kept moving forward with the thought 'I will finish it unconditionally' each time.
If I am a beginner to the portfolio class for the first time, I think I will make sure to select a concept and include the concept in my portfolio.