When deciding on a concept, it is important to properly allocate and measure.
Personally, the concept was very clear at the beginning, so there weren't a lot of things that were messed up from the start, so the initial work was very easy.
However, the concept was important, but I think it is very important to know what method to use as the process progresses.
In my personal experience, if I had taken action in the filming stage in advance, the work could have progressed very quickly, but I experienced a case where it was difficult to use my hands later, so the work was a little slow.
If you go through detailed planning in advance and continuous confirmation with teachers, you will be able to create a good portfolio without difficulty.